To prepare a summer vegetable spaghetti lacto beans and grains recipe, you will first need to prepare your ingredients. Wash your vegetables and chop them into small pieces. Add the vegetables to the crock-pot and cook on medium-high heat, stirring occasionally, until they are soft and tender, about 20 minutes. Drain the spaghetti and add it to your cooked vegetables. Cover the pot and let it simmer on low heat for 10 to 15 minutes, or until the pasta is al dente. Serve with sour cream, if desired.