28 ounce can of diced tomatoes, drained 1/4 cup finely diced onions 1 garlic clove (I use more) 2-4 tablespoons olive oil or butter Salt/pepper
Combine tomatoes, onion, garlic, and oil in skillet. Simmer 20-30 minutes, stirring occasionally, until excess water is cooked off and oil has separated. Season with salt and pepper.