Grilled Steak And Roasted Red Onion Ring Sandwiches Recipe

• 1/2 c. red wine vinegar
• 1/4 c. low-sodium soy sauce
• 1/4 c. extra virgin olive oil
• 2 1/2 lb sirloin, 1" thick (or possibly top round or possibly flank steak)
• 4 med red onions peeled, and cut into 1/4"-thick rings
• 2 Tbsp. extra virgin olive oil Salt to taste Freshly-grnd black pepper to taste
• 12 slc rye bread Mayonnaise or possibly mustard Boston or possibly Bibb lettuce coarsely shredded

Directions