Combine BBQ Sauce and Sriracha in a small bowl and stir to combine. Add more of less depending on your spice preference. Sprinkle both sides of chicken breasts with salt and pepper then thoroughly coat all sides with BBQ sauce mixture.
Heat grill or grill pan to medium-high heat and cook chicken breasts 5-7 minutes per side or until internal temperature reaches 165 degrees. While the chicken is cooking, prepare your toppings and wash your lettuce.
Once chicken is cooked through remove from heat and slice into small pieces. Combine and toss lettuce, cooked chicken, black beans, corn, avocados, and cheese into a large bowl and divide to serve. Add additional BBQ sauce if desired and serve with Homemade Buttermilk Ranch. Enjoy!
Additional Topping Ideas: diced tomatoes, hard boiled eggs, croutons, cooked bacon and diced red peppers.
Leftover Storage: Store leftovers in an airtight container for up to 4 days in the fridge. It is best to store ingredients separate and combine when ready to eat. It is recommended to top with ranch right before serving.
Optional Marinade: Marinade chicken in sauce mixture for up to 24 hours to develop more flavor.