Ground Beef and Spinach Casserole

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 (10.5 ounce) can condensed cream of celery soup
• 1 cup sour cream
• 1 (8 ounce) package shredded mozzarella cheese

Instructions

1. Step 1: Preheat the oven to 350°F (175°C).
2. Step 2: Heat a large skillet over medium-high heat. Add ground beef, onion, and garlic; cook and stir until beef is browned and crumbly, about 5 to 7 minutes. Drain and discard grease. Add mushrooms, oregano, hot sauce, salt, and pepper; simmer for 5 minutes.
3. Step 3: Add spinach, condensed soup, and sour cream; cook until heated through, about 5 minutes. Transfer mixture to a casserole dish and cover with mozzarella cheese.
4. Step 4: Bake in the preheated oven until the cheese is melted, 15 to 20 minutes.