Yield: 6 servings
Heat oven to 400 F.
Spray pie plate, 9x1 1/4 inch, with cooking spray. Sprinkle ham, pineapple and onions in pie plate.
Mix bisquick, milk, eggs and mustard until blended; pour over ham mixture.
Bake uncovered about 25 minutes or until knife inserted in center comes out clean. Sprinkle with cheese. Bake 3 to 4 minutes longer or until cheese is melted.
Please note that some ingredients and brands may not be available in every store.