Preheat oven to 350°F degrees.
In a large skillet brown sausage until done; drain and set aside. In the same skillet add olive oil and butter until bubbling, add squash and onions. Add seasoning to squash (onion powder, garlic salt, pepper, seasoning salt) and cook for 8-10 minutes.
While squash is cooking, in a large bowl add remaining ingredients and mix well. Add squash mixture and sausage to cornbread mix, stirring well.
Pour into a large casserole dish and bake for 40-45 minutes.
Submitted by: melissa barnett