1 pkg. (10 oz.) frozen chopped broccoli
3 c. shredded Cheddar cheese
1 1/2 c. cut up cooked chicken
2/3 c. chopped onion
1 1/3 c. milk
3 eggs
3/4 c. Bisquick baking mix
3/4 tsp. salt
1/4 tsp. pepper

Heat oven to 400 degrees. Grease glass baking dish. Drain and thaw broccoli. Mix in baking dish, broccoli, 2 cups of cheese, chicken and onion.

Beat milk, eggs, Bisquick, salt and pepper until smooth in separate bowl. Pour into baking dish on top of broccoli, cheese mixture. Bake until fork inserted in center of casserole comes out clean, about 1/2 to 3/4 hour. Top with remaining cheese and put back in and bake about 5 more minutes until cheese is melted. Cool 5 to 10 minutes and serve.