America's Test Kitchen Chunky Tomato Sauce for Lasagna

Total Time
Prep 10 mins
Cook 25 mins

This recipe was created specifically for lasagna, but it can also be used over regular pasta. I made this with America's Test Kitchen Simple Cheese Lasagna. Recipe courtesy of America's Test Kitchen Family Cookbook.


  1. Heat the oil in a large saucepan over medium heat until shimmering.
  2. Add the onion and 1 teaspoon salt and cook until softened, about 5 minutes.
  3. Add the garlic and cook until fragrant, about 30 seconds.
  4. Stir in the tomatoes with their juice, the oregano, and red pepper flakes.
  5. Simmer until the sauce is slightly thickened, about 15 minutes.
  6. Season with salt and pepper to taste.