Since I am the only one in my house that eats squash of any type I made this for lunch and just created! I made this for just me but I had enough left over to eat the next day. I only had small zuchini that I had purchased to use in another recipe but it was in dire need of using. You will have to adjust this recipe if using more squash. It turned out really good.
I had 2 small zuchini that I scooped out the center and chopped it up and placed it in a fry pan and added the sausage, celery, onion, garlic powder, bell pepper and I sauteed all of this until the sausage and vegetables were tender and the meat lightly brown. Mix the flour, bread crumbs in with this mixture, salt and pepper. Wait a little while to let this set then mix up egg in this mixture. It shouldn't be real hot because it will fry the egg. In a small baking dish place the scooped out zuchini with the butter underneath it and spoon the sausage mixture in it. Bake at 350 degrees uncovered for 20 minutes or until you can tell that the large zuchini is tender. Then add grated cheese on top and bake until it browns or bubbles.
Note: This recipe was created just for one or two people so you will need to increase measurements for a larger amount. This would be good with Italian sausage from the casing or hot country style sausage. I just used what I had on hand that day and it turned out very delicious!