Zucchini Hamburger Casserole

Here’s a hearty, cheesy, and family-friendly Zucchini Hamburger Casserole recipe — a great way to use fresh zucchini and ground beef for a low-carb, comforting dinner. It’s perfect for meal prep and even picky eaters will love it!

🥘 Zucchini Hamburger Casserole

Savory. Cheesy. Perfect balance of veggies, beef, and creamy sauce.

✅ Ingredients (Serves 6–8)

🍖 Main Ingredients:

1 lb ground beef
1 small onion, diced
2–3 medium zucchini, sliced thin or chopped
1 can (10.5 oz) cream of mushroom or cream of cheddar soup
½ cup sour cream or Greek yogurt
1½ cups shredded cheese (cheddar, mozzarella, or blend)
1 tsp garlic powder
1 tsp Italian seasoning (or oregano/basil mix)
Salt & pepper to taste
Optional: ½ cup breadcrumbs or crushed crackers for topping
Optional: 1 tbsp butter (if using topping)

🔥 Instructions

1. Preheat Oven

Preheat to 375°F (190°C).
Grease a 9×13-inch baking dish.

2. Cook Beef & Onions

In a skillet over medium heat, cook ground beef and diced onion until browned.
Drain excess grease.
Season with garlic powder, Italian seasoning, salt, and pepper.

3. Prepare Zucchini

Slice zucchini into thin rounds or half-moons.
Optional: Lightly sauté zucchini for 2–3 minutes to reduce moisture, or sprinkle with salt and pat dry after 10 minutes.

4. Mix the Filling

In a large bowl, combine:
- Cooked beef mixture
- Zucchini
- Cream of mushroom soup
- Sour cream
- 1 cup shredded cheese
Mix until everything is well coated.

5. Assemble & Bake

Pour mixture into prepared baking dish.
Top with remaining ½ cup cheese.
Optional: Mix breadcrumbs/crackers with melted butter and sprinkle on top.
Bake for 25–30 minutes, until bubbly and cheese is golden.

6. Cool & Serve

Let sit 5–10 minutes before serving.
Garnish with parsley or red pepper flakes if desired.

🧊 Storage & Reheating

Fridge: Store in airtight container for up to 4 days.
Freezer: Freeze in portions or whole dish for up to 2 months.
Reheat: Oven at 350°F or microwave until heated through.

🔄 Variations

Use ground turkey or sausage instead of beef
Add diced tomatoes, corn, or bell peppers
Make it spicy with jalapeños or chili flakes
Swap zucchini for yellow squash or a mix of both
Make it keto by skipping the breadcrumb topping

Would you like a low-carb version without condensed soup, a vegetarian twist, or a crockpot-friendly version next?