Some easy favorites:
1 lb. Skinless, boneless chicken breasts
1 pkg. McCormick's Mesquite Marinade
Marinade the chicken per the directions on the McCormick's package
New York Strip Steaks (or any other sort really)
1 lb. steak
1 pkg McCormick's Montreal Steak Marinade (or Stubb's Beef Marinade)
Marinade the steaks per the directions on the marinade package. (I substitute cider vinegar or red wine vinegar on the McCormick's.)
Don't marinade them for more than an hour as the vinegar (in the McCormick recipe) will start to break down the consistency of the steak.
I have one for excellent grilled jumbo shrimp, but it's been so long that I've forgotten the name of the exact type of Lea & Perrins sauce I used.