For this single serving version, I decided to make a sauce by melting butter in a skillet and then adding in onions, garlic and mushrooms. (onedishkitchen.com)
Next add in the onions, celery, green bell pepper and minced garlic. (kitchenbelleicious.com)
Next, add in onion powder, garlic, oregano, sugar and salt then reduce heat to low. (localsavour.com)