Brown burger, onions, and peppers in a skillet until meat is no longer pink. Add rice, salsa, chili powder, garlic powder, salt, pepper, and oat fiber. Mix well. Sprinkle with cheese and jalapenos. Cover lid tightly and turn on low heat for 10 minutes. Garnish with sour cream, diced onions, tomatoes, and cilantro just before serving. Serve 4-6.