The Best Dorito Taco Salad {Quick + Easy}

Name: The Best Dorito Taco Salad {Quick + Easy}
Prep time: 10 min
Cook time: 15 min
Total time: 25 min
Cuisine: Mexican
Ingredients: 1 tbsp olive oil, divided; 1/2 each red, green and yellow bell pepper, diced; 1 small red onion, diced; 1 lb extra-lean ground beef; 2 tbsp taco seasoning (recipe below - mix spices together to make seasoning, or use store bought); 1 head romaine lettuce, chopped; 1 can black beans, drained; 1 cup frozen corn, defrosted; 1 field tomato, diced and deseeded; 1 cup shredded cheddar cheese; 1/3 cup cilantro, finely chopped; 20 Cool Ranch Doritos (or any other flavour your heart desires!); 1/2 cup taco sauce (I like the Old El Paso kind); 1/2 cup chili powder; 1/4 cup cumin; 2 tbsp coriander; 2 tbsp garlic powder; 2 tbsp dried minced onion; 2 tbsp paprika; 2 tsp salt; 2 tsp pepper; 2 tsp red chili flakes