Mock Chilies Rellenos for crock pot

2 tsp butter
2 4 oz. cans chopped canned green chilies
½ lb cheddar cheese, grated
½ lb Monterey Jack cheese, grated
4 eggs, separated
3 Tbsp flour
¾ cup milk

Grease bottom and sides of crockpot. Place half of chile peppers in bottom of crockpot. Layer in order: cheddar, chilies, Jack. Beat egg whites till stiff. Fold in slightly beaten yolks, flour and milk. Pour into crockpot. Cover and cook on HI 2-3 hours.