Using a food processor or blender; combine yogurt cheese, olive oil, cilantro, jalapenos, tomatillos, lime juice, cumin and salt.
This dressing will yield about 1-1/2 cups.
Using a stovetop steamer, allow the steam to start.
Fold the tortillas in a kitchen towel.
Turn-off the heat and place the tortillas inside the steamer and cover.
Place a skillet on medium-high heat and grill the chicken tenders seasoned with salt and pepper for about 2-3 minutes per side.
Place 1/2 of the lettuce on each plate, topping with tomatoes, 2 chicken tenders, dressing and cheese.
Garnish with additional dressing, chopped onions, fresh cilantro and serve steamed tortillas on the side.