To prepare a fog city diners tomato ketchup condiments recipe, you will first need to gather your ingredients. You will need the following ingredients: Tomatoes 2 tbsp. Kosher salt 2 tablespoons olive oil 1 tablespoon garlic powder 1 teaspoon cayenne pepper Instructions Preheat the oven to 375 degrees F (190 degrees C) and prepare your oven rack to rack. Place the chopped tomatoes, onion, garlic, salt, and pepper into the bottom of an 8x8x2 inch baking dish. Pour the tomato mixture over the tomatoes and onion mixture. Bake for 20 minutes or until tomatoes are heated through. Remove from oven and allow to cool for 5 minutes before serving.