Heat the oven to 400 degrees.
Use an oven safe dish (I used my handy dandy cast iron).
Pour cauliflower rice (I used frozen) into the pan and disperse evenly. Place wild salmon (again, I used frozen) on top.
Slice an onion in half and place in the dish alongside salmon. Place 5 large garlic cloves throughout the dish, keeping the skins on (remove skins once the dish is baked). If you have smaller garlic cloves, tuck them under salmon steaks (smaller cloves can burn in the oven and tucking them will keep them moist).
Drizzle juice of one lemon over dish along with olive oil.
Sprinkle salt (I used Maldon which is larger and coarser), cumin, coriander, black pepper, and tarragon over the entire dish evenly.
Place dish in the oven for 30 minutes. If you opt for non-frozen ingredients, only bake for 15-20 minutes.