Hawaiian style vegetable soup that's healthy and delicious!
In a large pot, heat a little oil or water over medium heat. Add the onion, celery, and carrots, and cook for about 5 minutes until they start to soften.
Add the potatoes, kidney beans, tomato sauce, vegetable broth, bay leaf, salt, and pepper. Bring to a boil, then reduce to a simmer and cook for 30-40 minutes until the potatoes are tender.
Stir in the chopped parsley and red pepper flakes (if using). Adjust seasoning to taste. Remove the bay leaf before serving.
Serve hot with crusty bread or cornbread for a heartier meal.