If you have a deep muffin tin and eggs,you can make mini Spanish tortillas...and they can be frozen.
Beat together 3 eggs,a bit of cream,salt+pepper,and fresh chopped herbs if you have them. Add to this any combination of diced tinned potatoes,sauteed onions or mushrooms,lightly cooked broccoli, chopped red peppers,finely minced spring onions and grated cheese. Spoon into the greased muffin holes,and bake in a moderate oven until the mixture is just set . Leave to cool before turning out. Can be frozen,and they thaw quickly.