I used this recipe a lot when my kids were younger and it was helpful to have part of supper ready ahead of time. Especially because babies ALWAYS seem to be fussy when it is time to make dinner. Works great for company or potluck too.
- Peel and cook potatoes until tender.
- Mash potatoes with onion salt and sour cream.
- Add butter.
- Place in a 2 quart casserole dish and press down slightly.
- Top with cheese. Refrigerate overnight. Bake at 350°F for 1 hour.