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A serving of ground beef and zucchini casserole lasagna topped with melted cheese and parsley on a white plate.
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Hearty Ground Beef And Zucchini Casserole

Whip up this easy, cheesy ground beef and zucchini casserole for a low-carb dinner—it’s hearty, simple, and always a crowd-pleaser meal!
Prep Time10 minutes
Cook Time35 minutes
Resting time5 minutes
Total Time50 minutes
Course: Main Course
Cuisine: American
Keyword: ground beef and zucchini casserole
Servings: 4 servings
Calories: 327kcal

Ingredients

  • 1 lb lean ground beef
  • 1 small onion diced
  • 1 tsp garlic minced
  • 1 cup marinara sauce
  • 1 tsp Italian seasoning
  • 1 tsp salt
  • 1/2 tsp black pepper
  • 2 medium zucchinis sliced
  • 1 ½ cups mozzarella cheese shredded
  • fresh parsley to garnish

Instructions

  • Preheat the oven to 375° F, and grease a 9×13-inch baking dish.
  • Dice your onions.
    1 small onion
  • Slice the zucchinis.
    2 medium zucchinis
  • Cook the ground beef in a large skillet over medium heat until browned. Break the meat up as it cooks.
    1 lb lean ground beef
  • Add the onion and the garlic. Continue cooking for a minute.
    1 tsp garlic
  • Add the marinara sauce and the seasonings.
    1 cup marinara sauce, 1 tsp Italian seasoning, 1 tsp salt, 1/2 tsp black pepper
  • Stir the beef mixture and then set aside for now.
  • Arrange the zucchini slices in rows inside the greased baking dish, with each slice slightly overlapping the other.
  • Pour the meat mixture on top of the zucchinis.
  • Sprinkle the top with mozzarella cheese.
    1 ½ cups mozzarella cheese
  • Bake the dish, uncovered, in the oven for 20 minutes.
  • After baking, sprinkle the top with fresh parsley. Let the dish rest for 5 minutes before serving. Enjoy!
    fresh parsley

Notes

  • Salt and Drain the Zucchini: To avoid making your casserole watery, you can salt the zucchini slices, let them sit for 15 minutes, then blot them with a paper towel to remove any excess moisture.
  • Always Opt for Lean Ground Beef: Using this kind of ground meat will let you have a rich-tasting casserole without it getting too oily or greasy, especially on top.
  • Bind If Needed: If you think the casserole feels too loose after cooking, add a binding agent. An egg or shredded cheese can help hold the dish together after baking.
  • Let It Rest: Giving the dish at least 5 minutes to rest before serving will let it firm up, making it easier to slice or scoop.
  • Don’t Skip the Herbs: A sprinkle of parsley will help brighten the dish. Fresh basil and thyme work well, too.

Nutrition

Calories: 327kcal | Carbohydrates: 11g | Protein: 36g | Fat: 16g | Saturated Fat: 8g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Trans Fat: 0.4g | Cholesterol: 103mg | Sodium: 1219mg | Potassium: 915mg | Fiber: 3g | Sugar: 6g | Vitamin A: 756IU | Vitamin C: 24mg | Calcium: 264mg | Iron: 4mg