Cheesy Zucchini Bake (Crustless Casserole)
Description
A creamy, cheesy baked zucchini casserole that’s soft inside, golden on top, and slices beautifully. Think quiche meets veggie casserole—comfort food that somehow still feels a little virtuous.
Ingredients
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4 cups zucchini, grated (about 3–4 medium)
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1 small onion, finely diced
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3 large eggs
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1 cup shredded cheddar cheese
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½ cup shredded mozzarella
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½ cup grated Parmesan
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½ cup all-purpose flour
(or almond flour for low-carb) -
¼ cup olive oil or melted butter
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1 tsp salt
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½ tsp black pepper
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½ tsp garlic powder
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½ tsp Italian seasoning (optional)
Instructions
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Preheat oven to 375°F (190°C). Grease a 9×13-inch baking dish.
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Grate zucchini, then squeeze out excess moisture using a towel (important!).
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In a large bowl, whisk eggs, oil, salt, pepper, and seasonings.
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Stir in zucchini, onion, cheeses, and flour until fully combined.
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Pour mixture into prepared dish and spread evenly.
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Bake 40–45 minutes, until golden brown and set in the center.
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Rest 10 minutes before slicing for clean pieces.
Notes
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Removing moisture from zucchini = firmer casserole
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The top should be deeply golden (that’s flavor!)
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Texture firms up more as it cools
Tips & Variations
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Add protein: cooked bacon, sausage, or rotisserie chicken
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Low-carb: use almond flour or coconut flour
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Extra flavor: add fresh herbs (parsley, basil, chives)
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Crispier top: broil for 2–3 minutes at the end
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No onion? Swap for green onions or skip entirely
Servings
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8 servings
Perfect as: -
Breakfast casserole
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Side dish
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Light vegetarian dinner
Nutritional Info (per serving, approx.)
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Calories: 230
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Protein: 12g
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Fat: 16g
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Carbs: 10g
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Fiber: 2g
(Will vary based on cheese and flour used)
Benefits
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Sneaks in veggies without tasting “healthy”
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High in protein and calcium
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Naturally gluten-free with flour swap
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Great make-ahead meal
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Kid- and spouse-approved (critical metric)
Q & A
Q: Can I make this ahead of time?
A: Yes! Bake, cool, refrigerate up to 3 days. Reheat at 350°F.
Q: Can I freeze it?
A: Yep—cool completely, wrap tightly, freeze up to 2 months.
Q: Can I use yellow squash instead?
A: Absolutely. Or do half zucchini, half squash.
Q: Why is mine watery?
A: Zucchini wasn’t squeezed enough. It holds a lot of water.
Q: Can I make it dairy-free?
A: You can use dairy-free cheese, but texture will be softer.