Registered Dietitian ReviewedFlank steak makes a tasty and protein-rich topping for a salad. As such, it also tastes delicious on a sandwich with veggies on Martin’s 100% Whole Wheat Bread!
Place garlic in the center of a piece of foil and drizzle with oil. Gather the foil together at the top to form a sealed packet. Place over indirect heat or the coolest part of the grill.
Season both sides of the steak with 1/4 teaspoon each salt and pepper. Place steak and bell peppers over direct heat or the hottest part of the grill.
Cook garlic until soft and golden brown, about 8-10 minutes. Cook peppers, turning occasionally, until the skin is blistered on all sides, about 10 minutes total. Cook steak, turning once, until desired doneness, about 6 minutes per side for medium. Transfer the garlic packet, peppers and steak to a clean platter. Tent the steak with foil to keep warm.
Grill bread, turning once, until toasted, about 1 minute per side.
When the peppers are cool enough to handle, peel and discard the stems, seeds and ribs. Slice into wide strips and toss with the remaining 1/4 teaspoon salt in a small bowl.
Peel garlic and place in another small bowl with the oil from the packet. Add mayonnaise and mash with a fork until combined.
Once steak has rested as least 5 minutes, slice thinly.
To assemble sandwiches, spread 1 tsp. roasted garlic mayonnaise (aioli) on each piece of bread. Divide salad greens, steak and peppers among 4 slices of bread and top with the remaining bread