Allow the fish to sit at room temperature for 10 minutes.
Drizzle with olive oil and the juice of half a lemon, then sprinkle with salt, pepper and oregano to season.
Wrap in tin foil and bake for 15-20 minutes!
For the salad
Chop the lettuce, bell pepper, and cucumber. Toss with thinly sliced shallots and olives, then top with feta and baked salmon filet. Drizzle with vinaigrette.
For the dressing:
Blend all the ingredients in a Vitamix or food processor until smooth.
Store in airtight container in the refrigerator for up to three days.