Place cooked ground beef, cream of onion soup, rotel tomatoes, and taco seasoning into crockpot, mix well. Place lid on and cook on low 6-8 hours or high 4-5 hours.

Cut tortillas into strips, place on a parchment lined baking sheet, drizzle with a little olive oil and sprinkle with salt. Place in 425 degree preheated oven for 10-15 minutes until desired crispness is obtained.

Once crockpot is done, spoon into a bowl and garnish with tortilla strips, sour cream, cheese, and green onions.