Cook fish on the stovetop instead if you like crisp salmon skin—just use an oiled skillet over medium-high heat.
Spice up the brown-butter sauce by stirring in 1/2 teaspoon crushed red pepper along with the lemon juice and scallion greens in Step 3.
Make lunch: Flake leftover salmon with a fork and toss with extra-virgin olive oil, quartered grape tomatoes, finely chopped shallots and chopped fresh herbs; season with salt and pepper. Stuff into a split pita.