Heat oil in large pot over medium heat. Add in onion and bell pepper. Cook for a few minutes until softened.

Add in beef and cook until browned.

Add in cream cheese, taco seasoning, and diced tomatoes. Stir thoroughly until cream cheese has totally incorporated and no clumps are left.

Add in broth and bring to a simmer, uncovered, for 10 minutes.

Adjust thickness of soup to your liking by adding water or letting it simmer longer.

Serve.