Preheat oven to 375°F. Wash squash well; cut off top and remove seeds. In a large skillet, cook the beef, celery, green pepper, and onion until meat is browned and vegetables are ten-der; drain. Add all remaining ingredients and cook an additional 3 minutes, mixing well. Spoon filling into prepared squash and place them on a cookie sheet. Bake for 1 hour.
This Dinner in a Squash recipe is from the 101 Things To Do With A Casserole Cookbook. Download this Cookbook today.