Zucchini, Pepper & Mozzarella Bake with Creamy Lemon–Garlic Yogurt Sauce

This vibrant Zucchini, Pepper & Mozzarella Bake transforms humble summer vegetables into a comforting, all-in-one casserole. Layers of tender zucchini, sautéed onions, carrot, and bell peppers are bound together by a light egg-milk-flour batter, then crowned with melty mozzarella. Baked until golden and bubbling, the dish emerges with crispy edges and a custardy interior. Paired with a tangy lemon-garlic yogurt sauce, it balances rich, savory flavors with bright, fresh notes—perfect for family dinners, potlucks, or a cozy weeknight meal.

Cooking Time

  • Preparation: 20 minutes (chopping, mixing)

  • Baking: 35–40 minutes at 180 °C (350 °F)

  • Total Time: Approximately 1 hour

Ingredients

  • 4 medium zucchini, sliced into ½ cm rounds

  • Salt & freshly ground black pepper, to taste

  • 1 onion, thinly sliced

  • 2 Tbsp olive oil, divided

  • 1 carrot, peeled and grated

  • 2 bell peppers (any color), diced

  • 2 large eggs, beaten

  • 1 glass (240 ml) milk

  • 5 Tbsp all-purpose flour

  • 10 g (approx. 2 tsp) baking powder

  • 1 small sprig fresh parsley, chopped (about 2 Tbsp)

  • 120 g mozzarella, shredded

For the Sauce:

  • 2 Tbsp Greek yogurt

  • 2 Tbsp mayonnaise

  • 2 Tbsp green onion, thinly sliced

  • 1 clove garlic, minced

  • Juice of ½ lemon

Step-by-Step Cooking Directions

  1. Preheat oven to 180 °C (350 °F). Grease a 9×13″ baking dish with 1 Tbsp of olive oil.

  2. In a large skillet, heat remaining 1 Tbsp olive oil over medium heat. Add sliced onion and sauté until translucent, about 4 minutes.

  3. Stir in grated carrot and diced peppers; season with a pinch of salt and pepper. Cook 3–4 minutes until softened. Remove from heat.

  4. In a bowl, whisk eggs, milk, flour, and baking powder until smooth. Season lightly with salt and pepper.

  5. Layer half the zucchini slices in the greased dish, overlapping slightly. Scatter half the sautéed vegetables on top. Pour half the batter over, spreading gently.

  6. Repeat zucchini and vegetable layers, then pour remaining batter. Press down lightly so liquid fills gaps.

  7. Sprinkle chopped parsley evenly, then top with shredded mozzarella.

  8. Bake uncovered for 35–40 minutes, until the top is golden and a toothpick inserted into the center comes out clean.

  9. Meanwhile, whisk sauce ingredients together in a small bowl; refrigerate until serving.

  10. Let the bake rest 5 minutes before slicing. Serve warm with the lemon-garlic yogurt sauce on the side or drizzled over each portion.

Nutritional Information

(Per serving; recipe yields 6 servings)

  • Calories: 280 kcal

  • Protein: 12 g

  • Carbohydrates: 18 g

  • Dietary Fiber: 3 g

  • Sugars: 6 g

  • Fat: 16 g

  • Saturated Fat: 6 g

  • Sodium: 360 mg

The Origins and Popularity of the Recipe

Vegetable bakes like this draw inspiration from Mediterranean gratins and Italian frittatas, where seasonal produce, eggs, and cheese combine in a single pan. The use of zucchini and peppers reflects summer harvests across southern Europe, while the milk-flour binder echoes French quiches. Recently, such casseroles have soared in popularity as easy, family-friendly meals that showcase vegetables and require minimal cleanup.

Reasons Why You’ll Love the Recipe

  • One-Dish Convenience: Prep and bake in the same pan for easy cleanup.

  • Vegetable-Forward: Showcases zucchini, peppers, and carrots at peak freshness.

  • Customizable: Swap cheeses, add herbs, or stir in cooked proteins.

  • Crowd-Pleasing: Mild batter and gooey cheese appeal to kids and adults alike.

  • Make-Ahead Friendly: Can be assembled ahead and baked just before serving.

Health Benefits

Zucchini and peppers are rich in vitamins A and C, fiber, and antioxidants. Eggs and milk provide high-quality protein and calcium, while light use of oil keeps healthy fats in balance. Greek yogurt in the sauce adds probiotics and extra protein. Overall, the dish delivers a nutrient-dense, veggie-packed meal.

Serving Suggestions

  • Green Salad: A simple arugula-lemon salad cuts richness.

  • Crusty Bread: Use bread to mop up any leftover batter juices.

  • Grilled Proteins: Pair with chicken or fish for a hearty plate.

  • Pickles or Olives: A tangy side complements the creamy sauce.

Common Mistakes to Avoid

  • Overcrowding Pan: Arrange zucchini in a single layer for even baking.

  • Skipping Veggie Sauté: Pre-cooking onions and peppers prevents soggy bake.

  • Lumpy Batter: Whisk flour and baking powder well before adding eggs.

  • Undercooking Center: Ensure bake is fully set by inserting a toothpick in the middle.

  • No Rest Time: Allow 5 minutes after baking to let custard firm for clean slices.

Pairing Recommendations

  • Wines: A chilled Pinot Grigio or dry Rosé enhances the yogurt sauce’s tang.

  • Beers: A light lager or wheat beer refreshes the palate.

  • Non-Alcoholic: Sparkling water with lemon or a cucumber-mint infusion complements the flavors.

Cooking Tips

  • Drain Zucchini: If zucchinis are very watery, salt and rest 10 minutes, then pat dry.

  • Even Slices: Slice zucchini uniformly (about ½ cm) to ensure consistent cooking.

  • Cheese Variations: Swap mozzarella for feta, goat cheese, or gruyère for different notes.

  • Herb Boost: Stir thyme, oregano, or basil into the batter for extra aroma.

  • Sauce Adjustments: Add a dash of hot sauce or chopped herbs to the yogurt mixture for spice or color.

Similar Recipes to Try

  • Mediterranean Vegetable Gratin

  • Italian Frittata with Spinach & Parmesan

  • Greek Moussaka (Eggplant & Zucchini Bake)

  • Vegetable Lasagna with Ricotta

  • Spanish Tortilla (Potato & Onion Omelet)

Variations to Try

  • Protein Add-In: Stir cooked sausage, ham, or shredded chicken into the vegetable layer.

  • Gluten-Free: Replace flour with a 1:1 gluten-free blend and use gluten-free baking powder.

  • Spicy Kick: Add chopped jalapeño or red pepper flakes to the batter.

  • Herbed Ricotta: Dollop ricotta cheese within layers before baking.

  • Sweet Twist: Sprinkle a little maple syrup over the top before baking for a sweet-savory contrast.

Ingredient Spotlight

Zucchini: Low in calories but high in water, fiber, and vitamin C, zucchini absorbs flavors and gives bakes a tender texture. Its mild taste pairs beautifully with herbs, cheese, and sauces.

Conclusion

This Zucchini, Pepper & Mozzarella Bake offers a perfect balance of crunchy edges, creamy batter, and fresh vegetable flavor, all brought together by a tangy lemon-garlic yogurt sauce. Its adaptability and simplicity make it a reliable go-to for busy nights, weekend brunches, or feeding a crowd. Embrace seasonal produce, experiment with toppings, and enjoy the harmony of textures and tastes in every slice.

Frequently Asked Questions

  1. Can I use other vegetables?
    Yes—broccoli, spinach, or mushrooms work well with this batter.

  2. How far in advance can I assemble?
    You can assemble the dish, cover, and refrigerate for up to 24 hours before baking.

  3. Can I freeze leftovers?
    Freeze cooled portions in airtight containers for up to 1 month; thaw overnight in the fridge.

  4. Is the sauce required?
    The yogurt sauce adds brightness but can be omitted or replaced with marinara or pesto.

  5. Can I make it dairy-free?
    Substitute plant-based milk, vegan cheese, and dairy-free yogurt.

  6. How do I make it crispier?
    Broil the top for the last 2 minutes of baking—watch carefully to avoid burning.

  7. Can I use self-rising flour?
    Yes—omit the baking powder if using self-rising flour.

  8. What’s the best pan size?
    A 9×13″ or similar 3 L casserole dish yields optimal layer depth.

  9. Why is my bake watery?
    Ensure zucchini and peppers are not overly wet—pat dry before layering.

  10. How do I reheat without drying?
    Reheat covered in a 160 °C oven for 10 minutes or until warmed through.