Easy Grilled Salmon

I kind of made this recipe up. It is easy to make and delicious.
From: Joan Morris
1 filet salmon (I buy the farm salmon at Costco)
1 onion, sliced thin
2 cloves garlic, minced
2 lemon, 1 for juice and zest, the other sliced thin
Montreal grill seasoning
Lawry's seasoning salt
Butter, or butter flavoring
olive oil
Place salmon in tin foil, top with onion, garlic, lemon juice and zest, butter, oil, and seasoning. Enclose in tin foil. Place on heated grill for 10-15 minutes.
Optional:
Instead of onion, etc., pour 1 jar peach jam on salmon and place on grill.