Peel and chop Idaho® Russets
Add to a large pot and cover with water
Heat over high heat until the water reaches a boil
Reduce heat to medium-high and boil until the potatoes are fork-tender (15 minutes)
Drain and return potatoes to the pot
Heat 1 tbsp butter in a large sauté pan until melted
Add onion and sauté for 5 minutes
Stir in chopped red and orange peppers and jalapeño pepper, and continue cooking for another 4-5 minutes or until the peppers are soft and cooked
Stir in the green chiles
Remove pan from heat and set aside
Use a potato ricer to rice the potatoes and then combine with the onion / pepper mixture
Add 1 1/2 cups of Mexican cheese, milk, salt, pepper, and the remaining 3 tablespoons of butter
Taste, and season with additional salt and pepper
Garnish with sour cream, remaining Mexican cheese, avocado and chives