Preheat oven to 400.  Spray baking sheet with cooking spray. Spread broccoli and red onion on baking sheet and sprinkle liberally with kosher salt. Bake about 30-40 minutes.

Enjoy with any nonstarchy vegetables- peppers, brussel sprouts, mushrooms, leeks, zucchini, all low calorie, high nutrient foods so that you can nonstop munch.