Pre-heat the oven to 500ºF.
Lightly the spray or drizzle the poblanos, onions, garlic and jalapeño peppers with olive oil and roast until the peppers and tomatillos are charred and the onions are tender. Remove the garlic when light golden and tender; the peppers may need turning as well. Cool the peppers in a covered bowl, then peel and seed.
In a food processor, combine the three-quarters of the peppers, onions, garlic and tomatillos with the cilantro, honey, lime juice and salt, and pulse to chop or puree to your desired consistency. Adjust the seasonings, to taste.
Layer the nachos with the chicken, refried beans, salsa, remaining roasted poblano slices and shredded mozzarella.