Heat a large skillet pan or dutch oven over medium/high heat. Add olive oil.
When olive oil is fragrant, add the onion to the pan and sauté the onion for 2-3 minutes.
Turn heat to medium and add the sliced bell peppers to the pan and sauté the peppers and onions for an additional 4-5 minutes.
Add tomato sauce, green chilis, water, and taco seasoning to the pan and stir until a thick tomato sauce is created.
Next, add the shredded chicken to the pan and toss the chicken with the vegetables and tomato sauce until the chicken is coated in sauce.
Bring the tomato sauce to a boil and then turn heat to low and simmer the chicken until the sauce has reduced by 1/4. Remove chicken from heat and set aside.
To assemble the burritos, lay a large tortilla on a flat surface and spread 3 tablespoons refried beans out on the tortilla and then add 1/4 cup Spanish rice, 2 tablespoons shredded cheese and an 1/8 of the chicken mixture to the burrito.
Tightly wrap each burrito by folding the sides in and rolling. Repeat steps 7 and 8 until all the burritos are made.
If you are going to eat the chicken burritos right away, feel free to eat the burrito as is, freeze the burritos or heat the burritos up in the oven or on the stop top.