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Ground Beef Zucchini Casserole Recipe
Marigold Voss

Ground Beef Zucchini Casserole Recipe

A hearty and comforting ground beef zucchini casserole made with tender zucchini, seasoned beef, and melted cheese. This easy baked dish is perfect for family dinners and meal prep.
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Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Servings: 4 People
Course: Casserole, Main Course
Cuisine: American
Calories: 420
Ingredients Equipment Method Video Notes

Ingredients
  

  • 1 lb Ground beef lean
  • 2 tbsp Olive oil or vegetable oil
  • 1 cup Onion chopped
  • 2 cloves Garlic minced
  • 3 cups Zucchini sliced
  • 1 cup Tomato sauce no sugar added
  • 1 tsp Italian seasoning dried
  • ½ tsp Salt to taste
  • ½ tsp Black pepper to taste
  • 1½ cups Shredded cheese mozzarella or cheddar
  • 2 tbsp Fresh parsley chopped, garnish

Equipment

  • 1 Large skillet For cooking beef
  • 1 Baking dish 9×13 inch
  • 1 Wooden spoon For stirring
  • 1 Cutting board Vegetable prep
  • 1 Knife Sharp
  • 1 Measuring cups Optional

Method
 

  1. Preheat oven to 375°F (190°C).
  2. Heat olive oil in a large skillet over medium heat.
  3. Add chopped onion and sauté until softened.
  4. Stir in minced garlic and cook until fragrant.
  5. Add ground beef and cook until browned, breaking it apart.
  6. Drain excess fat if needed.
  7. Add tomato sauce, Italian seasoning, salt, and black pepper.
  8. Stir in sliced zucchini and cook for 3–4 minutes.
  9. Transfer the mixture to a greased baking dish.
  10. Sprinkle shredded cheese evenly on top.
  11. Bake for 30 minutes until bubbly and golden.
  12. Remove from oven and let rest for 5 minutes.
  13. Garnish with fresh parsley and serve warm.

Video

Notes

  • For a lower-carb version, reduce tomato sauce slightly.
  • You can add mushrooms or bell peppers for extra vegetables.
  • Let the casserole rest before serving for cleaner slices.
  • Store leftovers in the refrigerator for up to 3 days.