Image of Ground Beef-Spinach Casserole

Ground Beef-Spinach Casserole

Prep Time: 10 min
Cook Time: 30 min

Ingredients

  • 1 pound ground beef
  • 1 medium onion, chopped
  • 1 clove garlic, minced, or more to taste
  • 1 (10 ounce) can sliced mushrooms, drained
  • 1 teaspoon dried oregano
  • 2 dashes hot pepper sauce, or more to taste
  • salt and ground black pepper to taste
  • 2 (10 ounce) packages frozen chopped spinach, thawed and drained
  • 1 (10 ounce) can condensed cream of celery soup
  • 1 cup sour cream
  • 1 (8 ounce) package grated mozzarella cheese