Simple Skillet Huevos Rancheros with Fried Black Beans and Cotija Cheese

Name: Simple Skillet Huevos Rancheros with Fried Black Beans and Cotija Cheese
Ingredients: 1 lb Roma Tomatoes (roasted); 2-3 Serrano Peppers (roasted, stems removed); 2 Garlic Cloves (peeled); 2 Tbsp White Onion (finely diced); 2 Tbsp Canola Oil; Kosher Salt and Pepper (to taste); 1/3 C Canola Oil; 1/4 C White Onion (finely diced); 3 Garlic Cloves (peeled and minced); 2 1/2 C Shredded Potatoes; 1 Can (15 oz Black Beans, drained and rinsed); 1 tsp Dried Epazote; 4 Large Eggs; 1/2 C Cotija Cheese