Preheat oven to 400 degrees.

In greased pieplate, sprinkle salmon, onion, bell pepper, and half of the cheese.

Beat together milk, Bisquick, eggs, salt and pepper.

Pour into pieplate. (Can refrigerate at this point if you want to make it for breakfast the next morning).

Sprinkle on remaining cheese. Bake for 35 to 40 minutes or until knife comes out clean.