Cook Pasta: Bring a large pot of salted water to a boil. Add pasta shells and cook according to package directions (8-10 minutes) until al dente. Drain and set aside.

Sauté Aromatics: In a skillet, heat a drizzle of olive oil. Add ground beef and cook for 5-7 minutes until browned. Add chopped onion and minced garlic, cooking an additional 3-4 minutes until onion is translucent.

Create Sauce: Lower heat and add creamy tomato sauce and Italian seasoning. Stir to combine and simmer on low for about 5 minutes.

Combine Ingredients: Fold in cooked pasta shells into the sauce, mixing until well-coated for about 2-3 minutes.

Serve: Heat through for another 2 minutes and serve the dish, garnishing with herbs or cheese if desired.