Cheesy Beef and Pasta Casserole

Cook pasta according to package directions and drain.

While the pasta is cooking, to a large Dutch oven, optionally add the olive oil (my beef was very lean and the oil was necessary), beef, onion, red pepper, and cook over medium-high heat until beef is cooked through and vegetables have softened; stir frequently and crumble the beef while it cooks; do not drain.

Add the garlic, oregano, salt, pepper, and stir to combine. Cook for about 1 minute, or until garlic is fragrant.

Add the cooked pasta to the beef mixture, add the marinara, and stir to combine and coat evenly.

Add 1 1/2 cups cheese and stir to combine until the cheese has melted.

Turn mixture out into the prepared baking dish and evenly sprinkle the remaining 1 1/2 cups cheese over the top.

Bake for about 15 to 20 minutes, or until the cheese has melted on top.

Optionally garnish with fresh herbs and serve immediately.