Preheat oven to 400F degrees.
Place the salmon in the center of the baking sheet and all the vegetables around, either mixed or separated (as pictured).
Season the salmon and vegetables with oil, salt and pepper. Place lemon slices on the salmon and asparagus and squeeze the juice from what’s left of the lemon. If you wish to add fresh rosemary on the squash, it adds a great flavor otherwise skip it.
Bake for 20 minutes and serve immediately.