Leftover Ham -n- Potato Casserole

Ingredients (10)

• + 6 small potatoes, peeled and cubed add to pantry
• + 3 tablespoons butter add to pantry
• + 2 cups cubed fully cooked ham add to pantry
• + 1 small onion, finely chopped add to pantry
• + 3 tablespoons all-purpose flour add to pantry
• + 1 ½ cups milk add to pantry
• + salt and ground black pepper to taste add to pantry
• + salt and ground black pepper to taste add to pantry
• + 1 (8 ounce) package shredded Cheddar cheese add to pantry
• ✓ ¼ cup bread crumbs