I saw this last week on Serious Eats and decided to give it a try last night. I used 2 poblanos, 2 cubanelles, 1 anaheim and 1 jalapeno and 4 tomatillos along with the onion and garlic. It was really very good. I didn't use enough chicken so it was a little thin for a stew, but the flavor was lovely - delicate and slightly spicy. It was done in 30 mins starting from taking the peppers out of the fridge, so it is a weeknight option.
I have got to learn to how to use my pressure cooker like this more.
http://www.seriouseats.com/recipes/2015 ... ecipe.html--Lisa