Place the peppers on a baking sheet with the cut side facing down, and broil until blackened and blistered, about 10 minutes.
Place the peppers in a small sealable container or ziplock bag and let steam for 20 minutes before pinching off the blackened skin.Melt the butter in a pan over medium heat, add the onion and cook until tender, about 5-7 minutes.
Add the garlic and cook until fragrant, about a minute.
Sprinkle in the flour and cook, whisking, until it turns a light golden brown, about 2-3 minutes.Reduce the heat to medium-low, pour in the milk and simmer, whisking, until it thickens, about 2-3 minutes.
Add the chilies, cheese, cumin and salt to taste, let the cheese melt and puree in a food processor or blender.
Place the bread on a baking sheet, top with the turkey, tomatoes and green chili mornay sauce and broil until the sauce is bubbling and golden brown, about 2-3 minutes.
Serve topped with bacon, guacamole and cheese and enjoy!