Cook the potato nuggets according to the package instructions.
Adjust the oven temperature to 350 degrees F. Layer the potato nuggets with the cheese in a 1 1/2-quart baking dish. Bake until the cheese is melted, about 5 minutes.
Top the potato nuggets with the chorizo, salsa and pickled jalapenos. Drizzle with the sour cream and sprinkle with the onion and cilantro. Serve immediately.