Keto Lasagna

Name: Keto Lasagna
Prep time: 20 min
Total time: 20 min
Cuisine: American
Ingredients: Cooking spray; 1 (8-oz.) block cream cheese; 3 large eggs; 2 c. shredded mozzarella; 1/2 c. finely grated Parmesan; Kosher salt; Freshly ground black pepper; 1 tbsp. extra-virgin olive oil; 1/2 medium yellow onion, chopped; 3 cloves garlic, minced; 1 tbsp. tomato paste; 1 lb. ground beef; 3/4 c. marinara; 1 tsp. dried oregano; Pinch crushed red pepper flakes; 1 (16-oz.) container ricotta; 1 1/2 c. shredded mozzarella; 1/2 c. freshly grated Parmesan; Freshly chopped parsley, for garnish