Food & Cooking Recipes Healthy Recipes Gluten-Free Recipes Chunky Tomato Sauce 3.2 (80) Close Credit: Minh + Wass Use this chunky tomato sauce in our Baked-Eggplant Parmesan. Directions In a medium saucepan, heat oil over medium. Cook onion and garlic, stirring frequently, until translucent, 2 to 4 minutes. Crush tomatoes into pan; add oregano. Simmer, stirring occasionally, until thickened, 15 minutes. Season with salt and pepper.