In a large saucepan over medium-low heat, add the olive oil, onion and jalapeno. Season with salt and pepper. Cook, stirring occasionally, until peppers and onions have softened (but haven’t browned), about 6 to 8 minutes.
In a medium bowl, whisk together the eggs and sour cream. Season generously with salt and pepper. Add egg mixture to the pan, and cook, stirring constantly, until the eggs are almost fully cooked. Add the cheese and give the mixture a thorough stir.
Crush the tortilla chips with your hands (they don’t have to be uniform in size) and add to the egg mixture. Stir to combine then remove pan from heat.
Serve immediately with desired garnishes, or spoon egg mixture into tortilla (for a Miga-style breakfast taco) and top with garnishes.
Recipe by Allons-Eat! at https://www.allonseat.com/super-easy-tex-mex-migas/