Cover a large serving platter with lettuce leaves, then tear remaining leaves into small pieces to use in the rolls.
Place the small serving bowl of peanut dipping sauce in the center of the platter.
To assemble, fill a medium bowl that’s large enough to hold a rice wrapper with warm water and lay the clean kitchen towel in front of it.
Dip 1 rice wrapper in water for 20 to 30 seconds, then lay it on the kitchen towel.
Leaving about 1 inch at each end of the wrapper empty, then place these ingredients in a strip down the middle: 4 shrimp halves, 2 strips of steak, about 2 tablespoons of noodles, 4 or 5 bean sprouts, 2 or 3 slices of tomato, some scallions, a few pieces of lettuce, a few mint leaves, and 2 halves of basil leaf.
Fold in the top and bottom of the wrapper and roll up the spring roll; place on the platter of lettuce leaves and repeat the process for the remaining rolls, arranging them around the dipping sauce. Serve family-style.