Marinara sauce

1. Preheat oven to 375°F. 2. Heat a large skillet over medium-high heat. Add 1 tbsp olive oil and let it shimmer. 3. Add 1 lb ground beef, patted dry, in a single layer. Cook without stirring for 3-4 minutes until browned on one side. Stir and cook until no pink remains and internal temperature reaches 160°F. Drain excess fat. 4. Add 1 cup diced onion and 2 cloves minced garlic. Cook over medium heat for 4-5 minutes until onions are translucent. 5. Stir in 24 oz marinara sauce, 1 tsp salt, and 0.5 tsp black pepper. Simmer for 5 minutes until sauce thickens and coats beef. 6. Stir in 3 cups cooked pasta (penne or rigatoni) and 1 cup shredded mozzarella cheese off heat. 7. Transfer mixture to a greased 9x13 inch baking dish. Sprinkle 1 cup shredded mozzarella cheese evenly on top. 8. Bake uncovered for 20 minutes until cheese is melted and bubbly. 9. Let rest 5 minutes before serving. 10. Finish with 2 tbsp chopped fresh basil off heat.