My mom made cornmeal mush for our family when I was a kid! It came in a roll like sausage already made at the grocery store. She would cut it, dip it in egg and dust it with flour before frying. Then we would top with butter and syrup, or just powdered sugar before devouring it!!
I've been making mush for years. I put it in a loaf pan...then when set...cut in slices...we dust them with flour before frying!! Yum!
I'd suggest that you try cutting the mush with a string or unflavored dental floss. Works great, and no knives to wash!