Make this recipe a recipe that people in that category can eat. categories: ['low_calorie'], recipe: melt 1 tbsp butter in bottom of large pot. add onions, cover and cook 5 minutes. uncover and stir until onions are lightly browned. add water, bouillon, and pepper. hold over low heat for 30 minutes to blend flavors. butter bread very lightly and sprinkle one side with parmesan and romano cheese. place on baking sheet and bake at 350 degrees for 15 minutes. once done baking, remove bread from oven and set oven to broil. place soup in 4 oven-proof soup bowls, place 1 slice of swiss cheese directly on soup, top with one slice of bread, and another slice of cheese. broil until cheese melts and serve immediately. refrigerate leftovers.

Target recipe: in a large skillet, sauté onions in butter until crisp-tender. transfer to an ungreased 5-quart slow cooker/crock pot. add the broth, worcestershire sauce, and bay leaves. cover and cook on low for 5 to 7 hours or until the onions are tender. discard bay leaves. top each serving with french bread and cheeses.