To roast the Anaheim chiles and jalapenos: Roast the chiles by using metal tongs to hold them one-by-one over the flame of your stovetop until the skin is totally charred. (If you don't have a gas stove, you can use an outdoor grill OR place them on a baking sheet directly under your oven's broiler.) When totally blackened, place the chiles in a large resealable plastic bag and seal the bag to allow them to sweat for a good 20 minutes. Then use a knife to scrape off most of the blackened skin. Stem, seed and dice the chiles.
In large pot over medium heat, add the bacon and chorizo. Cook until the fat has been rendered out, 10 to 15 minutes.
Add the garlic and onion to a food processor and pulse until almost a paste.
Drain off most of the fat from the bacon and chorizo, then add the garlic-onion puree to the pot and cook for 3 to 4 minutes.
Pour the diced tomatoes and green chiles into the food processor and pulse slightly. Add to the pot, juice and all. Fold in the reserved diced chiles. Cook for 4 minutes. Slowly whisk in both cheeses and the evaporated milk. Cook for an additional 5 minutes to heat through, making sure to not scorch the bottom of the pot. Garnish with the chopped cilantro and eat from the pot with tortilla chips.