This one depends upon your kids, my daughter will not eat this.
One roast, any kind any cut
one can of diced tomatoes
a little curry powder or coriander and cumin
and a nice big spoonful of horseradish

Wash and drop that hunk o'meat in the pot, sometimes I'll cut up onions or potatoes to go under it.
Mix the rest then pour over the top. Low for 8-10 hours.