1 cup mashed potatoes (instant or leftovers is fine)
1 lb shredded cheddar cheese
3/4 cup butter
2-3 medium onions, diced
9-12 lasagna noodles
1. Cook noodles as directed on package to al dente.
2. Saute onions in 1 stick of butter (may use more if desired).
3. Butter 13x9 inch pan with remaining 1/2 stick butter.
4. Mix sauteed onions with mashed potatoes.
5. Layer noodles, then potatoes, then cheese, and repeat, ending with
cheese.
6. Cover with foil and bake in a 350° oven for 25-30 minutes or until cheese
is melted.