Heat 1 tablespoon of vegetable oil in a large skillet over medium heat. Add the ground beef and sausage to the skillet and cook, breaking it up with a spatula, until it is browned and no longer pink.
Remove beef from the skillet and set it aside. In the same skillet, add the remaining tablespoon of vegetable oil, the diced onion, minced garlic, and diced bell pepper to the skillet with the potatoes. Cook for an additional 5 minutes until the vegetables are softened.
Add the diced potatoes to the skillet and cook for about 5 minutes, season with salt and pepper, stirring occasionally, until they are golden brown.
Return the cooked ground beef to the skillet with the potatoes and vegetables. Add the frozen peas or mixed vegetables to the skillet (if you want to add those). Season everything with salt, pepper, paprika, and dried thyme.
Pour 3 tbsp beef broth into the skillet, stirring to combine. Allow to bubble and reduce for 5 minutes or so. (can add additional tbsp if desired) Garnish with chopped fresh parsley, if desired, before serving.