3 Cheese Zucchini Casserole
A cheesy zucchini casserole layered with American, Cheddar, and Swiss cheeses, baked to perfection. Perfect for comforting family dinners or potlucks with rich flavors and textures.
Ingredients
- 2 to 3 small zucchini, sliced ⓘ
- 1 small onion, chopped ⓘ
- 1 green pepper, chopped ⓘ
- 1 to 2 tomatoes, chopped ⓘ
- 1/4 lb. sliced American cheese ⓘ
- 1/4 lb. sliced Swiss cheese ⓘ
- 1/4 to 1/2 lb. shredded Cheddar cheese ⓘ
- buttered bread crumbs
- sliced mushrooms (optional) ⓘ
- minced garlic (optional) ⓘ
- salt and pepper (optional) ⓘ
Instructions
- Grease a 2-quart casserole dish.
- Layer sliced zucchini, chopped onion, green pepper, and tomatoes in the casserole.
- Start with American cheese slices at the bottom.
- Add a layer of shredded Cheddar cheese in the middle.
- Finish with Swiss cheese slices on top.
- Sprinkle buttered bread crumbs over the top.
- Optional: add sliced mushrooms and minced garlic between layers.
- Season with salt and pepper if desired.
- Bake at 350°F for 45 minutes until bubbly and golden.
Tips & Substitutions
For a creamier texture, consider adding a layer of ricotta cheese between the vegetables. If zucchini is not available, yellow squash can be a great substitute. You can also mix in some spinach for added nutrition. To make this dish even heartier, add cooked ground turkey or sausage. Remember to adjust the baking time if adding extra ingredients.
Serving Suggestions
This casserole pairs beautifully with a fresh green salad or a side of garlic bread for a complete meal. For a light dessert, consider serving Sorbet afterward to cleanse the palate. It’s also delicious alongside A Good Simple Dessert to round out a family dinner.
Storage & Reheating
Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, cover the casserole with foil and warm it in the oven at 350°F for about 20 minutes, or until heated through. You can also microwave individual portions for a quick meal.
Nutrition & Diet Analysis (per serving)
Each serving of 3 Cheese Zucchini Casserole contains roughly 333 calories, with 19g protein, 14g carbohydrates, and 23g fat. It is an excellent source of calcium (42% of the Daily Value), protein (38% of the Daily Value), and vitamin A (22% of the Daily Value), and a good source of vitamin C. Note that it is relatively high in sodium, at 1098mg per serving (48% of the Daily Value).
Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.
* % Daily Values based on a 2,000 calorie diet (FDA 2020).
Frequently Asked Questions
Can I make this casserole ahead of time?
Yes, you can assemble the casserole a day in advance. Just cover it tightly and refrigerate. When ready to bake, allow it to sit at room temperature for about 30 minutes before placing it in the oven to ensure even cooking.
How can I make this dish gluten-free?
To make this casserole gluten-free, use gluten-free bread crumbs or omit the topping entirely. You can also sprinkle some gluten-free cheese on top for extra flavor and texture.
What can I serve with this casserole?
This zucchini casserole goes well with a variety of sides. For a hearty meal, pair it with Perfect Day Potato Salad or some roasted vegetables. A light vinaigrette salad also complements the rich flavors of the cheeses.
Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).