Heat a skillet over medium heat and add olive oil. Season the chicken breasts with salt and pepper. Add the chicken to the skillet and cook for about 7-10 minutes on each side until cooked through and golden brown. Remove from the skillet and let it rest before slicing into thin strips.
In a mixing bowl, add the cooked chicken slices and pour over the buffalo sauce. Ensure the chicken is well-coated by tossing it together.
Start by placing a hearty scoop of cooked rice in the bottom of each bowl. Layer with chopped romaine lettuce, followed by the buffalo-coated chicken strips. Sprinkle with shredded cheddar cheese and diced tomatoes.
Drizzle ranch dressing over the top of the assembled bowl.
Notes
Store the components separately for freshness and assemble the bowls just before serving.