Gluten-Free Crostini Tomato Basil Mozzarella
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This gluten-free tomato basil mozzarella crostini is made with a quick no-yeast cottage cheese bread, then toasted and topped with cherry tomatoes, mozzarella, fresh basil, and a honey balsamic glaze for an easy appetizer. It comes together quickly with simple ingredients and is gentler on digestion than traditional crostini.
This gluten-free tomato basil mozzarella crostini recipe starts with my easy, no-yeast French bread made from oat flour, almond flour, and cottage cheese. It bakes up golden and sturdy, so it’s perfect for slicing into little toasts. Then we top it with melty mozzarella, juicy cherry tomatoes, fresh basil, and a quick honey-balsamic drizzle. It’s everything you love about Caprese-style crostini—just made allergy-friendly and easier on digestion.
If you’ve been looking for a simple gluten-free appetizer that actually holds together (and tastes amazing), this is it. There’s no rising time, no gums, and no fuss—just real ingredients and step-by-step instructions to help you make it confidently. I’ll walk you through how to toast, top, and serve them so they’re party-ready in about 40 minutes.
Why You’ll Love This Gluten-Free Crostini Recipe
- No yeast, no rise time: Start to finish in about 40 minutes—perfect for last-minute entertaining.
- Crispy and satisfying: The homemade French bread gets golden and crunchy, perfect for holding all the toppings.
- Flavor-packed topping: Tomatoes, basil, and mozzarella plus a quick honey balsamic glaze = unbeatable flavor.
- Allergy-friendly and gentle on digestion: No gluten, no gums, and easy swaps to make it dairy-free or vegan.
Ingredients & Substitutions
Here is everything you need to make gluten-free cottage cheese French bread:
| Options | w/ Almond Flour | w/o Almond Flour |
|---|---|---|
| Oat Flour | 1-1/4 cups Oat Flour + 1/2 cup Almond Flour | 1-1/2 cups Oat Flour |
| Brown Rice Flour | 1-1/3 cups Brown Rice Flour + 1/2 cup Almond Flour | 1-1/2 cups Brown Rice Flour |
| Gluten-Free Flour Blend | 1-1/4 cups Gluten-Free Flour + 1/2 cup Almond Flour | 1-1/2 cups Gluten-Free Flour |
| Cassava Flour | 1/2 cup Cassava Flour + 1 cup Almond Flour | Not recommended for a ‘bread’ consistency |
- Oat Flour: You can make your own by blending rolled oats in a food processor until fine or use storebought.
- Almond Flour: Adds moisture and structure without the gumminess of rice flour. You can swap with sunflower seed flour for a nut-free option with similar fat content and texture.
- Parmesan Cheese: Provides savory depth and helps create that crusty exterior. For a dairy-free version, use nutritional yeast or a dairy-free parmesan alternative.
- Baking Powder: Make sure yours is fresh (less than 6 months old) or your bread may not rise.
- Salt: I prefer fine sea salt, but kosher salt works well too (just use a bit more).
- Cottage Cheese: The secret ingredient that adds protein, moisture, and helps achieve that tender crumb. Blend until smooth before using. You can substitute with Greek yogurt.
- Egg: For an egg-free version, a flax egg (1 Tbsp ground flaxseed + 3 Tbsp water) works surprisingly well.
- Sesame Seeds: Add authentic French bread appearance and nutty flavor to the crust. You can substitute with poppy seeds, everything bagel seasoning, or omit entirely.
- Egg White: Creates that shiny, bakery-style golden crust. Brushing with olive oil or dairy-free milk works as an alternative.
- Garlic: A little goes a long way to infuse flavor into the crostini. For a low-FODMAP version, skip it or use garlic-infused olive oil instead.
- Mozzarella: I like using fresh mozzarella slices or pearls because of how well they melt. You can also use a dairy-free mozzarella that melts well, like Miyoko’s or Violife.
- Cherry Tomatoes: These bring the juicy sweetness! Grape tomatoes or chopped tomatoes also work if that’s what’s in your fridge.
- Fresh Basil: Adds brightness and that classic Caprese flavor. Flat-leaf parsley can work in a pinch, but basil really makes it shine.
- Balsamic Vinegar + Honey: This quick little drizzle ties everything together with sweet-tangy goodness. Maple syrup or agave are great swaps for the honey if you need it vegan.
Easily Adapt This Recipe for Any Diet
This recipe is naturally easy to tweak! Follow these simple swaps to make it gluten-free, dairy-free, or vegan while keeping the same great texture and flavor.
- Gluten-Free: The recipe is gluten-free as written—just make sure your oat flour is certified gluten-free if you have celiac.
- Dairy-Free: Use dairy-free, thick greek yogurt in place of cottage cheese and swap mozzarella for a plant-based version that melts well.
- Vegan: Combine the dairy-free swaps above with a flax egg and use maple syrup instead of honey in the glaze.
💡 Pro Tip: If you try a substitution, let us know how it worked in the comments!
How to Make My Gluten-Free Crostini Recipe
Here are easy, detailed, step-by-step instructions that are also repeated in the recipe card at the bottom of this blog post.
Step 1: Prepare the Cottage Cheese and Preheat
Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper or a silicone baking mat.
Place 1 cup cottage cheese in a blender or food processor and blend until completely smooth. Add the egg and blend just until combined.
Step 2: Mix the Bread Dough
In a large bowl, whisk together 1-1/4 cups oat flour, 1/2 cup almond flour, 1/4 cup grated parmesan cheese, 1-1/2 teaspoons baking powder, and 1/2 teaspoon salt until well combined.
Add the blended cottage cheese and 1 egg to the dry ingredients. Mix with a wooden spoon or spatula until just combined. The dough should slightly stick to your fingers when touched. If it’s too dry, add a little milk and if it’s too wet, add a little more flour.
Step 3: Shape the Bread
Pour some oil in your hands and shape the dough into a smooth loaf on a baking sheet.
In a small bowl, lightly beat 1 egg white. Brush the top of the loaf lightly with the egg white, then sprinkle with 1 teaspoon sesame seeds.
Step 4: Bake the Loaf
Bake for 28-32 minutes, or until the crust is golden brown. Let the bread cool completely on a wire rack to allow the interior to set properly. If you slice it while it’s still warm, the center can crush and become gummy.
Step 5: Toast the Crostini
Preheat oven to 425°F (220°C). Slice the cooled loaf into 1/2-inch slices. Mix 2 tbsp olive oil with 1 minced garlic clove. Brush both sides of each slice and place on a baking sheet. Toast 5–7 minutes until golden.
Step 6: Add Mozzarella
Place a small slice or spoonful of mozzarella on each toasted crostini. Return to the oven for 1–2 minutes, just until softened.
Step 7: Finish and Serve
Top each crostini with halved cherry tomatoes. Sprinkle with salt and a little black pepper.
In a small bowl, stir together 2 tbsp balsamic vinegar and 1 tsp honey. Adjust sweetness to taste.
Drizzle each crostini with balsamic-honey glaze. Add fresh basil on top. Serve warm or at room temp.
My Expert Recipe Tips
- Toast the bread slices well: You want them golden and crisp on the edges, which helps the crostini hold up to juicy toppings without getting soggy.
- Let the loaf cool before slicing: I know it’s tempting, but cutting into hot bread can make the inside gummy or flatten the crumb. Letting it cool gives it time to set up properly.
- Use fresh basil last: Wait to add the basil until right before serving so it stays vibrant and fresh. If you add it too early, it can wilt from the heat.
- Add toppings right before eating: This is a big one! If you assemble too far in advance, the tomato juices and balsamic glaze can soften the bread. Keep the bread and toppings separate until just before serving for the best texture.
Delicious Serving Suggestions
- Appetizer platter: These crostinis are perfect on a party board with olives, nuts, and fruit.
- Game day snack: Serve as a gluten-free finger food for any sports night.
- With salad: I love serving these with my lemon chicken caesar salad recipe.
- A side for soup: The Italian flavors taste amazing with my marry me chicken soup.
Frequently Asked Questions
Suggested Recipes
If you enjoyed making these gluten-free crostini from scratch, here are a few more easy bread bases, sauces, and appetizer-style recipes that pair beautifully or follow a similar no-yeast, real-ingredient approach:
- Gluten-Free Cottage Cheese French Bread (No-Yeast)
Soft on the inside, sturdy on the outside, and perfect for slicing, dipping, or turning into crostini-style toasts. - Greek Yogurt Flatbread Naan (Gluten-Free)
An easy no-yeast flatbread that works well for appetizers, wraps, or serving alongside dips. - Oat Flour Dinner Rolls (No-Yeast)
Simple, comforting rolls made with oat flour and no rising time — great for holidays or everyday meals. - Creamy Italian Dressing (Olive Garden–Style)
A versatile dressing and drizzle that works just as well on salads as it does on roasted veggies or appetizers. - Greek Yogurt Tzatziki Sauce
Fresh, creamy, and light — a great dip or spread for crostini, flatbreads, and snack boards. - Easy Gluten-Free Breadsticks
A classic appetizer-style bread that’s simple to make and perfect for dipping.
Gluten-Free Crostini Tomato Basil Mozzarella
Gluten-FreeIngredients
- 1-1/4 cups oat flour (150g)
- 1/2 cup almond flour (56g)
- 1/4 cup grated parmesan cheese (30g)
- 1-1/2 teaspoons baking powder
- 1/2 teaspoon salt
- 1 cup cottage cheese (blended)
- 1 egg
Bread Topping:
- 1 teaspoon sesame seeds
- 1 egg white
Crostini Toppings:
- 2 tablespoons light olive oil
- 2 cloves minced garlic
- 4 ounces mozzarella cheese
- 1 cup cherry tomatoes
- 8 basil leaves (fresh)
- 1 teaspoon coarse sea salt
- 2 tablespoons balsamic vinegar
- 2 teaspoons honey
Instructions
- Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper or a silicone baking mat.
- Place 1 cup cottage cheese in a blender or food processor and blend until completely smooth. Add the egg and blend just until combined.
- In a large bowl, whisk together 1-1/4 cups oat flour, 1/2 cup almond flour, 1/4 cup grated parmesan cheese, 1-1/2 teaspoons baking powder, and 1/2 teaspoon salt until well combined.Add the blended cottage cheese and 1 egg to the dry ingredients. Mix with a wooden spoon or spatula until just combined. The dough should slightly stick to your fingers when touched. If it’s too dry, add a little milk and if it’s too wet, add a little more flour.
- Pour some oil in your hands and shape the dough into a smooth loaf on a baking sheet. In a small bowl, lightly beat 1 egg white. Brush the top of the loaf lightly with the egg white, then sprinkle with 1 teaspoon sesame seeds.
- Bake for 28-32 minutes, or until the crust is golden brown. Let the bread cool completely on a wire rack to allow the interior to set properly. If you slice it while it’s still warm, the center can crush and become gummy.
- Preheat oven to 425°F (220°C). Slice the cooled loaf into 1/2-inch slices. Mix 2 tbsp olive oil with 1 minced garlic clove. Brush both sides of each slice and place on a baking sheet. Toast 5–7 minutes until golden.
- Place a small slice or spoonful of mozzarella on each toasted crostini. Return to the oven for 1–2 minutes, just until softened.
- Top each crostini with halved cherry tomatoes. Sprinkle with salt and a little black pepper.
- In a small bowl, stir together 2 tbsp balsamic vinegar and 1 tsp honey. Adjust sweetness to taste.
- Drizzle each crostini with balsamic-honey glaze. Add fresh basil on top. Serve warm or at room temp.
Video
Notes
Nutrition
Important Disclaimer
This recipe is created by a home cook and not a medical professional. Our ingredient philosophy is reviewed by RDNs, but this specific post is not personalized medical advice. Please consult your healthcare provider for dietary concerns.
Looking for more easy bread recipes without yeast?
Browse all of my no-yeast bread alternatives , including rolls, flatbreads, quick breads, and simple doughs made with ingredients that are easier to work with and quicker to make.
These crostinis are so fun and easy to make! Please come back and leave a rating and let me know how they turn out for you in the comments below 🙂