Turn the garlic into onions in the roasted tomatoes recipe. Get four of the onions that you would like to use. I suggest small to medium white or yellow sweet onions. Peel, chop, and mince before smashing them with a meat tenderizer. Then, place them with the tomatoes on a baking sheet and drizzle with oil, season, and roast for 25 minutes. After, continue with the rest of the recipe as stated.