2 (10 oz.) pkgs. frozen chopped broccoli
3 c. shredded cheddar cheese (12 oz.)
2/3 c. chopped onion
1 1/3 c. milk
3 eggs
3/4 c. buttermilk baking mix
3/4 tsp. salt
1/4 tsp. pepper

Heat oven to 400 degrees. Grease pie plate, 10" x 1 1/2". Rinse broccoli under running cold water to thaw; drain thoroughly. Mix broccoli, 2 cups of the cheese and the onion in plate. Beat milk, eggs, baking mix, salt and pepper until smooth, 15 seconds in blender on high or 1 minute with hand beater. Pour into plate. Bake until knife inserted in center comes out clean, 25 to 35 minutes. Top with remaining cheese. Bake just until cheese is melted, 1 to 2 minutes. Let stand 5 minutes. Serve.