Preheat oven to 300° F.
Slice the orange, blood orange and 1 lemon (or whatever citrus fruit you are using). On a parchment paper lined sheet pan, arrange the slices to create a bed or platform for the salmon.
Lay the salmon fillet a top the citrus. Zest ½ of lemon and scatter zest over the fillet. Spread salmon with extra virgin olive oil ensuring the fillet is fully coated with oil. Sprinkle salmon with salt, freshly ground pepper and several sprigs of fresh dill.
Place in oven and roast for 25-30 minutes. When salmon is cooked it should take on an opaque pink color. Garnish remaining sprigs of fresh dill.