Ingredients:

• 1 tablespoon olive oil
• 1 medium onion (about 1 cup), chopped
• 1 pound ground beef (80-20 mix)
• 1 teaspoon chili powder
• 1 teaspoon coriander
• 1/2 teaspoon dried oregano
• 3/4 teaspoon Morton kosher salt (maybe more)
• 1 (16-ounce) bag tortilla chips, preferably thick and sturdy
• 1 bell pepper, cored, halved and chopped (about 1 cup)
• 1 (15-ounce) can black beans, rinsed and drained
• 1 cup frozen corn
• 1 (2.25-ounce) can sliced black olives, about 1/4 cup
• 1 to 1 1/2 cups grated cheddar cheese or shredded Mexican cheese blend
• 1 avocado, cubed
• 2 scallions, green ends sliced thinly
• 1 plum tomato, diced
• 1/2 cup cilantro, chopped
• 1 jalapeño pepper, seeded and thinly sliced
• 1/3 cup sour cream
• 1 cup sour cream
• Juice of 1 lime
• 1/3 cup cilantro
• Pinch salt