1 pound hot or mild chorizo
1 pound hot or mild bulk Italian sausage
2 tablespoons butter
4 onion rolls, split
2 store-bought hash brown patties, cut in half, smashed and fried crispy
4 eggs, fried to desired doneness
1/2 cup fine-diced seeded firm Roma tomato
1/2 cup mayonnaise
2 tablespoons lemon juice
1 tablespoon chopped fresh cilantro
1 tablespoon chopped garlic
1 tablespoon chopped scallions
1 avocado, diced small
Salt and freshly ground black pepper