Ravioli Lasagna Bake

Name: Ravioli Lasagna Bake
Prep time: 15 min
Total time: 15 min
Cuisine: American, Italian
Ingredients: 1 lb. ground beef; 1/2 medium onion, chopped; Kosher salt; Freshly ground black pepper; 2 cloves garlic, minced; 1 (32-oz.) jar marinara sauce; 16 oz. whole milk ricotta; 1 large egg; 1 c. freshly grated Parmesan, divided; 1/4 c. freshly chopped basil, plus more for garnish; 1 tsp. garlic powder; 2 (12-oz.) packages frozen cheese ravioli; 2 c. shredded mozzarella