Here is a one-pan salmon meal that can be assembled and baked to perfection. It would be a super-fast weeknight dinner that only takes 25 minutes to cook.
Spray a 9 x 12 inch baking sheet with cooking oil.
Prep the asparagus by breaking off the ends. Then, lay asparagus in the sheet pan and coat with olive oil, salt, and pepper.
Lay salmon on top of the asparagus and add a little more salt and pepper to the fish. Add the tomatoes, lemon slices, and onion slices. Place the pan into the oven and bake for 25 minutes.
Gremolata
Mix ingredients for the Gremolata in a small bowl and serve over the salmon and asparagus.
Notes
Skin-on salmon would be okay to use also.
If you have leftovers, they can be stored, refrigerated in an airtight container for up to 3 days.