Prepare riced cauliflower according to package instructions. Fold in cilantro and lime juice. Hold hot. Prepare corn and black bean fiesta blend according to package instructions. Hold hot.
For each serving; place 3/4 cup of cauliflower rice in a bowl. Place 2/3 cup corn and black bean fiesta blend alongside cauliflower. Place 3 oz. of chicken on other side of the bowl. Finish with a guacamole cup on the side.