Rhonda's Ham and Cheese Delight

I got this recipe from Sheri Stromness who I'm guessing got it from a lady named Rhonda. It's a really yummy breakfast bake~

1/2 c. chopped onioin
1 T. butter
2 c. chopped ham
3 beaten eggs
1 c. grated cheese
2/3 c. cracker crumbs
1 c. milk
dash of pepper

Cook onion in butter until tender. Add ham, eggs, cracker crumbs, milk, and pepper. Mix well. Bake in greased 7X11 pan. Cook at 350* for 45-50 minutes or until knife comes out clean. Double recipe for a 13X9X2 pan.