Instructions
Heat olive oil in a medium saucepan over medium high heat. Add onions to hot oil and saute about 3 minutes until soft, adding garlic during last minute of sautéing. Pour in crushed tomatoes and season with salt and pepper to taste. Bring mixture just to a boil, then reduce heat to a simmer and allow sauce to cook for about 25 - 30 minutes (which will allow some of the water in crushed tomatoes to evaporate) while you prepare pasta and lasagna filling (you can freeze or refrigerate left over sauce in a small airtight container for later use, adding fresh basil if desired).