In a blender, combine the tomatoes, ½ of the diced onion, water, garlic, jalapeño pepper, ½ teaspoon of the kosher salt, Mexican oregano, cumin, and water. Blend until completely smooth.
Heat the oil in a large skillet or sauté pan over medium-high heat. Add the remaining ½ of the diced onion and cook for 5 minutes, stirring occasionally, until softened.
Add the ground beef and sprinkle with the remaining ½ teaspoon of kosher salt. Cook for 6 minutes, breaking up the meat into small pieces as it cooks. Drain and discard any excess grease if necessary.
Stir in the potatoes and carrots and cook for 5 more minutes. Pour in the pureed tomato mixture and stir to combine. Reduce the heat to low, cover, and cook for 15 minutes.
Uncover and cook for 5 more minutes. Stir in the frozen peas and cook uncovered for 5 more minutes, or until the potatoes and carrots are tender. If the meat starts to get dry, add in ¼ cup of water and continue cooking.
Taste and season with more salt as needed.
Video
Notes
Jalapeño: You can remove the seeds if you don’t want it spicy, or you can completely omit the jalapeño for no spice at all.