If I had a photo, I would most certainly use it. That is... unless the photo I have sucks. For now, you'll just have to picture a big heaping helping of
Remove the seeds from 2 of the poblanos, rough chop and put into a blender along with the green onions, lime juice, 1/2 of the white onion rough chopped, 4 of the garlic cloves, oil, tequila and salt & pepper - blend until smooth
Put steak in a large zip lock bag, or casserole dish and cover with 3/4’s of the marinade - refrigerate a couple hours
Meanwhile thinly slice remaining poblanos and white onion
Put into a pan with about a tablespoon of oil, and cook on medium heat until beautifully softened and beginning to caramelize - about 10 minutes
Slice remaining clove really thin and add to the veggies with a good pinch of salt & pepper - stir through about a minute, then remove from heat and set aside
Heat grill to high, and cook steak until just medium rare, adding a little of the saved marinade as you go
Remove, let rest about 10 minutes, then thinly slice
Slice the rolls in half lengthwise, then grill until you get good marks
Put a sandwich worth of the steak in a non-stick pan on medium heat, top with cheese and cover to melt
Build the sandwich: on the bottom bun put some mayo, some marinade, the steak with cheese and finally the vegetables