The sweet and tart orange-ginger sauce used to top this oven-roasted salmon also makes a flavorful dressing for a side salad with arugula, peppers and almonds.
Heat orange juice and ginger in a small saucepan over medium-high heat. Bring to a boil and allow to continue boiling (reduce heat if it looks like it will boil over) until it reduces to a third of its original volume, ~10 minutes. Remove from heat and whisk in mustard, lime juice, cumin and red pepper flakes. Season with some salt and pepper.
Line sheet pan with foil and brush with some cooking oil. Add salmon and bake for 8 to 12 minutes (note: the general rule is 8 to 12 minutes for salmon that is 1” (2.5 cm) at its thickest point, so adjust as needed).
Toss arugula with bell peppers and almonds. Add half the sauce to salad and toss to combine. Serve salmon with the remaining sauce over the top and salad on the side. Enjoy!