My family is a big fan of flat iron steak. You can buy a large enough cut to feed the whole family and it is reasonably priced. I have yet to have one that isn't tender too. McCormick's had their marinade packets on sale at the grocery store last week so I decided to pick one up and try it. It was really good, lots of flavor, and the kids out-ate us!
2 lb. flat iron steak
1 envelope McCormick's Mesquite Marinade
1/4 cup oil
1. Mix marinade seasoning with water and oil. Reserve a small amount for basting. Place remainder in a large ziploc bag.
2. Rinse steak and pat dry. Place in ziploc bag with marinade.
3. Refrigerate over night.
4. Grill over medium heat, 10 minutes each side, brushing with reserved marinade.