Whip together first 5 ingredients, salt and pepper, and 1/2 cup onions.
Spread potatoes over bottom and up sides of 8 x 12 inch baking dish to make shell.
Bake uncovered, for 25 minutes at 350*.
Cook broccoli and drain.
Arrange in potato shell.
Sprinkle with cheese and the rest of the french fried onions.
Bake 5 minutes longer.
“Very good. I loved the flavor the french fried oniond gave this. We like our broccoli crisp/tender, so instead of pre-cooking it I placed them in a colander and poured hot water them to partially dethaw than placed them atop the potatoes and cookeds for the full length od time.Thank You Christine-“