1 tsp extra virgin olive oil, ½ yellow onion, 1 pinch sea salt, 1 lb ground beef, 1 packet taco seasoning, 4-6 c romaine lettuce, 1 c cherry tomatoes, 2 avocados, ½-1 c cheddar cheese, 4-6 tbsp sour cream, 1-2 c Siete Grain Free Tortilla Chips, Hot sauce, Ranch dressing