Cheesy Baked Zucchini and Ground Beef Casserole

Cheesy Baked Zucchini and Ground Beef Casserole

This zucchini and ground beef bake is a savory, protein-packed dish made with wholesome vegetables and melted cheese. It begins by salting and draining sliced zucchini to prevent excess moisture, ensuring a firm and satisfying texture. Mushrooms, onions, and marinara sauce add richness and depth of flavor, while Italian herbs tie everything together.

The casserole is assembled in layers and finished in the oven, creating a cheesy, melty top that’s hard to resist. This dish is light on carbs yet hearty enough to enjoy as a complete meal, making it ideal for anyone seeking a flavorful, balanced recipe that feels comforting and indulgent.

Cheesy Baked Zucchini and Ground Beef Casserole

Recipe by AhsanCourse: Lunch or DinnerCuisine: Fusion, ModernDifficulty: Easy
Servings

6

servings
Prep time

40

minutes
Cooking time

35

minutes
Calories

~350

kcal

Ingredients

  • 1½ lb (680 g) zucchini

  • ¾ tsp table salt or 1¼ tsp kosher salt (for zucchini)

  • 1 medium yellow onion

  • 1 tbsp olive oil

  • 8 oz (225 g) mushrooms

  • ½ tsp onion powder (for mushrooms)

  • ½ tsp garlic powder (for mushrooms)

  • ½ tsp salt (for mushrooms)

  • 1 lb (450 g) ground beef (85/15 recommended)

  • ½ tsp salt (for beef)

  • ½ tsp garlic powder (for beef)

  • ½ tsp onion powder (for beef)

  • Paprika (no quantity stated)

  • 1 cup marinara sauce

  • 1½ cups shredded mozzarella (use 1 cup in mixture + ½ cup for topping)

  • Tiny pinch of salt (for mixture)

  • Freshly ground black pepper (to taste)

  • 2 heaping tsp Italian herb blend

  • 2 tbsp grated Parmesan

Directions

  • Prepare the Zucchini
    Slice 1½ pounds (680 g) of zucchini into rounds. Place them into a colander and sprinkle with about ¾ teaspoon table salt (or 1¼ teaspoons kosher salt). Toss to coat and let the zucchini sit for 30 minutes to release moisture. This prevents the bake from becoming soggy.
  • Cook the Aromatics
    Dice one medium yellow onion. Warm 1 tablespoon of olive oil in a skillet over medium-high heat. Add the diced onion and cook for 3–4 minutes until it begins to soften.
  • Add Mushrooms
    Slice 8 oz (225 g) of mushrooms and add them to the pan. Cook until golden and the liquid evaporates. Season with ½ teaspoon onion powder, ½ teaspoon garlic powder, and ½ teaspoon salt. Toss well, then remove the mushrooms from the pan and set aside
  • Brown the Beef
    Add 1 pound (450 g) ground beef (85/15 recommended) to the same skillet. Cook and crumble the meat until no longer pink. Season with ½ teaspoon salt, ½ teaspoon garlic powder, ½ teaspoon onion powder, and paprika. Stir to coat, then remove from heat.
  • Prepare and Assemble the Mix
    Rinse the zucchini to remove salt, then pat dry with paper towels. Add the onion and mushroom mixture back into the skillet, followed by the zucchini, and 1 cup of marinara sauce. Add 1 cup of the shredded mozzarella (reserving ½ cup for later), a tiny pinch of salt, black pepper to taste, and 2 heaping teaspoons of Italian herb blend. Toss everything together until combined.
  • Bake
    Transfer the mixture to a 9 × 13 inch baking dish. Spread evenly and gently press down with a spatula. Sprinkle 2 tablespoons of grated Parmesan on top. Bake at 400°F (200°C) for 30 minutes.
  • Melt Cheese Finish
    Remove from the oven and top with the remaining ½ cup mozzarella. Return to the oven just until the cheese melts. If needed, broil for 1–2 minutes for a golden finish.

Recipe Video

Notes

  • Draining and drying the zucchini well is essential — excess moisture will make the casserole watery, so don’t skip the 30-minute salting step.
About Author

Ahsan

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