Easy topping for chicken or fish

1/2 C. Dijon mustard
1/4 C. maple syrup ( I used sugar free )
1 T. red wine vinegar
salt and pepper
rosemary

Season chicken or fish ( I used salmon ) with salt and pepper and place in baking dish that has been sprayed with non-stick spray.  Mix all ingredients except rosemary, together in a small bowl. Pour mixture over meat and bake at 375 for about 40 min. for chicken, 30 min. for fish.  After baking, sprinkle with rosemary.
I served this with spaghetti squash, green beans and corn on the cob.