Potato Chorizo Tacos with Avocado Salsa

1 pound potatoes, cut into 1/2 inch dice
salt
1 pound Mulay’s Chorizo sausage
1/2 cup finely chopped onions
1 cup diced, husked but not peeled fresh tomatillos
2 Serrano chilies or 1 medium jalapeno chile, stemmed and coarsely chopped
1 large clove garlic, coarsely chopped
1 large avocado, halved, seeded, peeled and sliced
12 -6 or 7 inch corn tortillas, warmed

In 3 quart saucepan, bring 1 quart water to boil. Add potatoes and 2 teaspoons salt; cook, covered, 10 to 12 minutes until just tender. Drain. In large nonstick skillet over medium heat, break up sausage and sauté with onions about 10 minutes, stirring occasionally, until sausage is cooked through and onions are tender.  Add potatoes to skillet; cook and toss until potatoes begin to brown. Keep warm. To make Avocado Salsa, add tomatillos, chilies and garlic to container of electric blender or food processor; pulse on and off, scraping sides of container as needed, until finely chopped. Add avocado; blend until almost smooth.  Season with salt.  Fill tortillas with potato mixture; accompany with salsa.  Makes 4 servings.