All measurements are just eyeballed. Use your best judgement!!1!!
What you’ll need:

Salmon 

One orange 

1 lime 

2 lemons 

Rosemary ~fresh~

Green onions 

Piece of ginger 

Grain mustard 

Olive oil Garlic 

Black pepper 

Preheat your oven to 425 degrees.
Slice all of your citrus Cut your garlic and green onions into small pieces  Cut your ginger into 3 parts. Peel and cut one of the pieces.
In a bowl, mix together the grain mustard, black pepper, olive oil and the juice of one lemon. 
Cover the bottom of a baking dish with olive oil and place your pieces of salmon in there. I keep the skin on because more nutrients are a plus, no? Brush the fish with the grain mustard mixture. Place your fresh rosemary, citrus, onions, garlic, ginger in, on and about the fish. Make it look real nice and stick it in the over for about 17-20 min. EAT THE DAMN THANG!! <3