1 head green cabbage
1 tbsp. extra-virgin olive oil
1 large onion, chopped
1 red bell pepper, chopped
Kosher salt
2 cloves garlic, minced
2 tsp. ground cumin
2 tsp. chili powder
3 c. cooked and shredded chicken
1 1/3 c. red enchilada sauce, divided
2 tbsp. chopped cilantro, plus more for garnish
1 c. shredded Monterey jack
1/2 c. shredded cheddar
Sour cream, for drizzling