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Ground Beef Zucchini Casserole Recipe


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4.1 from 81 reviews

  • Author: Sara
  • Total Time: 50 minutes
  • Yield: 6 servings
  • Diet: Low Carb, Gluten Free

Description

A hearty and comforting casserole made with seasoned ground beef, tender zucchini, tomato sauce, and melted cheese. This family-friendly meal is packed with flavor and perfect for a low-carb, gluten-free dinner option.


Ingredients

Main Ingredients

  • 1 lb ground beef
  • 1 tbsp olive oil
  • 1 small onion, diced
  • 3 medium zucchini, sliced
  • 2 cloves garlic, minced
  • 1 can (15 oz) tomato sauce
  • 1 tsp Italian seasoning
  • ½ tsp paprika
  • Salt and black pepper, to taste
  • 2 cups shredded mozzarella cheese
  • ¼ cup grated Parmesan cheese


Instructions

  1. Preheat Oven: Preheat your oven to 375°F (190°C) and grease a 9×13-inch baking dish to prevent sticking.
  2. Cook Onion: Heat olive oil in a skillet over medium heat and cook the diced onion until softened and translucent, about 3-5 minutes.
  3. Brown Ground Beef: Add the ground beef to the skillet and cook until browned evenly. Drain excess fat if necessary to keep the dish less greasy.
  4. Add Seasonings: Stir in minced garlic, tomato sauce, Italian seasoning, paprika, salt, and black pepper. Mix well and simmer for a few minutes to combine flavors.
  5. Prepare Zucchini Layers: Salt the zucchini slices lightly and let them sit for about 15 minutes to reduce excess moisture, then pat dry with paper towels.
  6. Layer Ingredients: Place half of the zucchini slices evenly in the bottom of the baking dish. Spread the seasoned beef mixture over the zucchini layer.
  7. Add Remaining Zucchini: Top the beef mixture with the remaining zucchini slices, arranging them evenly.
  8. Add Cheese: Sprinkle shredded mozzarella and grated Parmesan cheese evenly over the top layer.
  9. Bake: Bake in the preheated oven for 30–35 minutes until the casserole is bubbly and the cheese is golden brown.
  10. Rest and Serve: Allow the casserole to rest for 5 minutes before serving to let it set for easier portions.

Notes

  • Salting the zucchini slices and letting them sit helps reduce excess moisture, which prevents the casserole from becoming watery.
  • You can add mushrooms or bell peppers to the beef mixture for extra vegetables and flavor.
  • Leftover casserole reheats well, making it a great option for meal prep or next-day lunches.
  • Prep Time: 15 minutes
  • Cook Time: 35 minutes
  • Category: Casserole
  • Method: Baking
  • Cuisine: American