Storage: Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently on the stove with a splash of milk or cream to restore creaminess.
Substitutions: You can use heavy cream instead of half-and-half for a richer sauce, or chicken broth for a lighter version. Rotini or penne pasta works well as a substitute for shells.
Tips: For extra flavor, sauté the garlic in the chicken drippings before adding the tomatoes. Add red pepper flakes for a hint of heat.
Serving Suggestion: Serve with crusty French bread or garlic bread and a simple green salad.