Salmon with spices and lime

I just made salmon with a spice rub and lime slices. 

I made much more of the rub than I used (about a third of this batch) and saved the rest in a zipper bag. I wasn't really measuring, so the amounts are approximate.

3 Tablespoons kosher salt,

2 Tablespoons each garlic powder and paprika

1 Tablespoon each black pepper and cumin

 dash of cayenne pepper

I applied the rub to the salmon, and topped each piece with thick slices of lime. 

I baked the salmon at 400F for 12 minutes on a foil-lined cookie sheet. 

For a side, I made a simple stir-fry of zucchini and sweet onions. Rice and beans would also go well with the Mexican flavors in the spice rub.