Cook the rice according to package directions. Cut the bell peppers into pieces and chop the parsley.
Rinse the chicken breast and pat it dry using paper towels. Cut the chicken into bite-sized pieces. Heat the olive oil in a skillet and sear the chicken on all sides for a few minutes. Season generously with salt and pepper. Remove the chicken from the skillet and set aside.
Add a little more olive oil to the skillet and sauté the rice together with the green beans, corn, and bell peppers for 3 minutes. Add the chicken and vegetable broth and season with salt, pepper, paprika, and lemon juice.