1. Preheat oven to 375 degrees. 2. Spray baking sheet with non-stick cooking spray and place chicken on sheet. Bake chicken in oven until cooked through. Remove from oven and dice into 1/2 in. cubes. 3. In a medium sized stock pot, heat oil over high heat. Add jalapeno and cook 3 minutes, stirring often. 4. Add cumin, green chilis, milk, and northern beans. Simmer for 10 minutes, stirring occasionally. Puree with hand blender (or transfer to regular blender) until smooth and creamy. 5. Add chicken, and salt and pepper to taste. 6. Stir in the cheddar and serve immediately.