10 spears frozen broccoli (or fresh, precooked)
3 Tbsp butter
3 Tbsp flour
1½ cups milk
2 eggs, separated
5 Tbsp parmesan cheese
1 Preheat oven to 350° F.
2 In saucepan, make a roux with butter and flour.
3 Slowly add milk to roux and cook on low until thickened, adding more milk if needed.
4 Cook broccoli for 4 minutes in microwave, drain, and place in buttered casserole.
5 Remove sauce from heat.
6 Beat yolks and stir into white sauce when it is slightly cooled.
7 Add cheese.
8 Beat egg whites and fold into sauce.
9 Pour mixture over broccoli (do not stir in); bake for 30 to 40 minutes.