High-Protein Cheesy Zucchini Ground Beef Bake

ByHannah Peterson

This hearty, cheesy casserole layers tender zucchini with seasoned ground beef and a gooey melted cheese topping — It’s a comforting, one-dish meal that’s high in protein, low in carbs, and perfect for family dinners or meal prep.

Why You’ll Love This Recipe

  • Very high protein from beef and cheese
  • Low carb and keto-friendly (zucchini replaces pasta)
  • One-pan easy with minimal cleanup
  • Make-ahead and freezer-friendly
  • Packed with flavor and veggies

Ingredients (Serves 6)

  • 2 lbs (900g) ground beef (80/20 or lean)
  • 4–5 medium zucchinis, sliced into thin rounds
  • 2 cups (200g) shredded mozzarella or Italian blend cheese (divided)
  • ½ cup (50g) grated Parmesan cheese
  • 1 cup (240ml) marinara or sugar-free tomato sauce
  • 1 small onion, diced
  • 3–4 cloves garlic, minced
  • 2 tsp Italian seasoning
  • 1 tsp salt (or to taste)
  • ½ tsp black pepper
  • 2 tbsp olive oil
  • Fresh parsley for garnish

Instructions

  1. Preheat oven to 375°F (190°C). Lightly grease a large baking dish.
  2. Heat olive oil in a large skillet over medium-high heat. Add onion and cook 2–3 minutes. Add garlic and ground beef; cook until browned, breaking it up (6–8 minutes). Drain excess fat if needed.
  3. Stir in tomato sauce, Italian seasoning, salt, and pepper. Simmer 3–5 minutes.
  4. In the baking dish, layer half the zucchini slices. Top with half the meat sauce, then half the mozzarella and Parmesan.
  5. Repeat layers, ending with remaining cheese on top.
  6. Bake 25–30 minutes until zucchini is tender and cheese is bubbly and golden. Broil for the last 2 minutes if desired for extra browning.
  7. Let rest 5–10 minutes. Garnish with fresh parsley and serve.

Prep Time: 15 minutes Bake Time: 30 minutes Total Time: 45 minutes

Nutrition (Per Serving)

  • Calories: ~415
  • Protein: 38g (very high)
  • Total Carbs: 9g
  • Net Carbs: 7g
  • Fat: 26g

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