Turkey Casserole - cooking recipe

Ingredients

2 eggs, separated
6 Tbsp. flour
1 can Cheddar cheese soup
1/4 c. mayonnaise
onion salt and pepper to taste
10 oz. pkg. chopped broccoli, cooked, or peas
2 c. diced turkey
1 can mushrooms, drained

Preparation

This is from my grandmother's book \"Domestic Cookery,\" printed in 1851.