For years my family has used McCormick's Meat Marinade, mostly for flank steaks. It is the flavor of my childhood cookouts. Alas they have discontinued it. After some digging on the internet my brother found a recipe that is pretty similar in flavor although not an exact match.
Meat Marinade
makes enough to marinade about 2 pounds of steak
1 tbsp soy sauce
2 tsp minced onions
1 tsp garlic powder
1 tsp salt
1/2 tsp ground mustard
1/2 tsp paprika
1/4 tsp ground black pepper
1/4 c vegetable oil
2 tbsp vinegar
1 tbsp water
Mix the seasonings together then add the soy sauce, oil, vinegar, and water. Use either a 9x13 glass pan or mix in a bowl and put into a large resealable bag.
Pierce tougher cuts of meat a few times with a fork and add to marinade. Refrigerate 30 minutes or longer for more flavor. Remove steak from marinade; discard any remaining marinade.
Grill, broil, or roast until steak is cooked to desired doneness.
Note: you can use powdered soy sauce and make a big batch of the seasoning mix. Be sure to keep in a sealed container. No need to add extra water if using powdered soy sauce. If doing a big batch use 2 Tbsp and 2 1/2 tsp of the season mix.
