Combine the cilantro, lime juice, olive oil, honey, chili powder, salt, and pepper in a food processor or blender and pulse until smooth. Place shrimp in a zipper bag and add 3 tablespoons of the dressing; marinate in the refrigerator for 10 minutes (no longer). Reserve the remaining dressing for the salad. After the shrimp have marinated, spray the bottom of a skillet with extra virgin olive oil or nonstick spray. Saute the shrimp for 1-2 minutes on each side or until just barely cooked through. Set aside to cool slightly. Discard dressing used to marinate shrimp. Place lettuce into a serving bowl and top with tomatoes, avocado, shrimp, and crushed tortilla chips. Sprinkle with salt, to taste, and drizzle dressing on top.