Sauté chicken: heat vegetable oil in large pan over medium- high heat and add chicken tenders. Cook 5 to 6 minute turning as necessary. Remove chicken from pan and set aside, when cool shred into bite sized pieces.
Sauté onion and garlic: add the chopped onion and garlic to pan and cook stirring occasionally for 2 to 3 minute remove from pan and set aside.
Cook Chili: place the onions, garlic, beans, chilies, chicken broth, jalapenos, cumin and oregano in large pot. Bring to boil over medium heat, reduce heat to low. Cook stirring occasionally for 10 to 15 minute stir in chicken, jack cheese, and crème fraiche. Cook just until cheese is melted and chicken is warmed through. If the chili is too thick it can be thinned with more chicken broth.