Easy to prepare appetizer. Serve as an extra side dish for your mains tonight!
Preheat oven to 350 F
Grease an 8x8-inch casserole dish
Melt the butter in a pan with medium heat
Cook onions until soft but not browned
Add flour and blend with onion
Ad in milk and stir constantly
Boil the mixture for 2 or 3 minutes and then remove from heat
Stir in shredded cheese, peas, tuna, salt and pepper.
Pour into the casserole and cover with crushed corn flakes and dot with butter
Back the mixture for 20-30 minutes
Sprinkle parseley over the top of the hot casserole.
Garvish with tomato wedges and lemon wedges
Serve while hot