Golden & Crispy 3 Amigos Grilled Melts Cheese Sandwich

sourdough bread (unbleached enriched flour [wheat flour, malted barley flour, niacin, reduced iron, thiamine mononitrate, riboflavin, folic acid, water, yeast, salted butter [pasteurized cream, salt, fully refined soybean oil, wheat gluten, wheat flour, canola oil, malted barley flour, fumaric acid, and 2% or less of acetic acid, lactic acid, granulated sugar, calcium propionate, dough improver [malted wheat flour, enzymes and 2% or less of ascorbic acid, caramel color, salt, calcium sulfate, sunflower lecithin, lime pepper chicken (chicken breast meat, chicken broth, lime juice, salt, garlic, carrageenan, sodium phosphate, yeast extract, spices, tomatillo avocado sauce (cream, tomatillo [tomatillo, citric acid, avocado puree, serrano peppers [serrano puree, water, vinegar, and salt, water, modified food starch, salt, canola oil, onion powder, garlic powder, natural green color [turmeric, spirulina blue, glycerin, lime juice, chili pepper powder, citrus fiber, black pepper, pasteurized process monterey jack cheese (pasteurized milk, cheese culture, salt