Huevos Rancheros Nachos with Avocado Crema

Name: Huevos Rancheros Nachos with Avocado Crema
Ingredients: 4 oz. bacon and/or chorizo ((110g, chopped)); 1 can black beans ((15 ounces/425g, drained)); 1 cup tomato ((chopped)); ½ cup mango ((chopped; optional – peaches or nectarines can also be substituted)); ¼ cup onion ((chopped)); 1/2 cup cilantro ((chopped)); 1 lime; salt and pepper; 1 large ripe avocado ((pitted)); 1/2 cup plain yogurt; 3/4 cup tomato sauce or puree; a few big handfuls of quality tortilla chips; 2 cups shredded cheese; 5 eggs; a small handful of radishes ((thinly sliced; optional))