Bring 3 cups water to a boil. Preheat oven to 350. Place chicken breasts in boiling water and cook for 20 minutes. In the mean time cut peppers and onions and saute in olive oil for 10 minutes. When chicken is complete shred chicken. Do NOT drain water left from boiled chicken. Place shredded chicken in the pan with the onions and peppers. Add 1/2 of the can of enchilada sauce to mixture. Place a couple of wooden spoons over boiling water and place one tortilla on spoons let steam for 1 minute. When tortillas are complete take each tortilla and spread 1 Tbsp. of beans, then, chicken onion, pepper mixture. Drizzle the remaining enchilada sauce on top of the enchiladas. Sprinkle all the cheese and cook for 20 minutes. When complete drizzle sour cream on top. Now your ready to eat!