Step 1: Prepare the Chipotle Ranch Sauce

1. In a small bowl, combine the ranch dressing and finely chopped chipotle peppers in adobo.
2. Add the fresh lime juice, garlic powder, salt, and pepper.
3. Stir until well combined and smooth.
4. Refrigerate until ready to use. For best flavor, prepare at least 30 minutes before assembling burritos.

Step 2: Prepare and Grill the Chicken

1. In a small bowl, combine the chili powder, paprika, cumin, garlic powder, onion powder, salt, and pepper.
2. Pat the chicken breasts dry with paper towels and brush with olive oil.
3. Sprinkle the spice mixture evenly over both sides of the chicken, pressing gently to adhere.
4. Preheat grill to medium-high heat (about 400°F) or heat a grill pan over medium-high heat on your stovetop.
5. Grill the chicken for 5-7 minutes per side, or until the internal temperature reaches 165°F.
6. Remove from heat and let rest for 5 minutes before slicing into thin strips.

Step 3: Prepare Your Fillings

1. If not already prepared, cook your rice according to package instructions.
2. Warm the black beans in a small saucepan over medium heat for 3-5 minutes.
3. Prepare all your fresh toppings: shred the lettuce, dice the tomatoes and red onion, chop the cilantro, and slice the avocado.

Step 4: Assemble the Burritos

1. Warm the flour tortillas in the microwave for 15-20 seconds or on a dry skillet for about 30 seconds per side.
2. Lay a tortilla flat on a clean work surface.
3. Spread about 2 tablespoons of the chipotle ranch sauce in the center of the tortilla.
4. Add 1/4 cup of rice in a line down the center, leaving about 2 inches from the edges.
5. Top with 1/4 of the grilled chicken slices and 1/4 cup of black beans.
6. Add your desired amount of shredded cheese, lettuce, tomatoes, red onion, cilantro, and avocado.
7. Drizzle with an additional 1-2 tablespoons of chipotle ranch sauce.

Step 5: Fold and Roll the Burrito

1. Fold in the sides of the tortilla toward the center.
2. While holding the sides, fold the bottom edge up and over the filling.
3. Continue rolling tightly away from you until the burrito is sealed.
4. If desired, wrap in foil to help hold it together and keep it warm.
5. Repeat with remaining tortillas and fillings.

Step 6: Toast the Burrito (Optional but Recommended)

1. Heat a large skillet over medium heat.
2. Place the assembled burrito seam-side down in the skillet.
3. Cook for 1-2 minutes per side until golden and crispy.
4. This helps seal the burrito and adds a delicious crunch!