To prepare the ciambotto, you will first need to prepare your ingredients. In a large skillet, heat the olive oil over medium-high heat. Add the garlic and saute until fragrant, about 1 minute. Stir in the tomato paste and cook, scraping up any browned bits from the bottom of the pan, until the sauce begins to thicken, 2 to 3 minutes. Remove the skillet from heat and add the tomatoes. Season with salt and pepper to taste.