You can find jarred green chilies in many supermarkets.
Ingredients
½ cup mayonnaise
1 tsp grated lime zest
2 tsp lime juice
½ tsp kosher salt
1 tbsp grated yellow onion
1 garlic clove, grated
¼ tsp jalapeno powder
¼ tsp ground coriander
3/4 cup diced roasted Hatch chiles (or Anaheim or Cubano)
1 jalapeno, roasted, peeled, seeded and diced
1 serrano, roasted, peeled seeded and diced
4 oz (1 cup) sharp Cheddar cheese, shredded
4 oz (1 cup) Monterey Jack cheese, shredded
Directions
Whisk together the mayo, lime, zest, salt, onion, garlic, jalapeño powder and coriander in a large bowl until smooth.
Add the chiles and cheese and fold gently to combine. Cover and refrigerate for at least 1 hour and up to 24 hours. Remove from refrigerator 30 minutes before serving.