While making fried cauliflower "wings", we made toaster oven salmon. For the marinade I just threw together some miso, soy sauce, brown sugar, and rice vinegar.

I think my toaster oven is a bit underpowered, as it took much longer than the recipe suggested. In principle though, I really enjoy the salmon covered in a marinade or flavored mayo and broiled. The oil coating in both cases insulates the fish from the heat so as not to dry out. Plus, the coating can get a nice browning. I also make broiled salmon with harissa spice mayo quite often.