Adjust rack to middle of the oven and preheat to 375°F
In a large bowl, add the cream cheese, sour cream, salsa, coriander, garlic powder, onion powder, cumin, paprika, and refried beans. Using an electric hand mixer, whisk until fully combined, about 1 minute (Alternatively, you can whisk by hand or use a stand mixer with the whisk attachment).
Add the drained pinto beans and two-thirds of the Mexican cheese blend. Stir to combine. Season generously with Kosher salt and freshly ground black pepper and stir to combine. Taste and add more salt, if needed.
Transfer mixture to a medium baking dish (shallow and wide is better than deep) and spread out evenly. Sprinkle remaining cheese over the dip and bake on the middle rack for 28-32 minutes, until cheese is melted and starting to bubble.
Garnish with as much salsa as you’d like and scallion greens. Serve with tortilla chips, for dipping.