To prepare a spicy tomato cabbage soup recipe, add the following ingredients to the pot: 1 chopped red onion, 2 chopped green bell peppers, 1/4 cup chopped garlic, 1 teaspoon salt, and 1 tablespoon pepper to taste. Cover and cook on medium-high heat until the onions are soft, about 20 minutes. Stir in the chopped tomatoes. Bring to boil, then reduce the heat to low and simmer for 30 minutes, stirring occasionally. Remove from heat and let cool. Serve with sour cream.