In a small frying pan, add a teaspoon of oil and heat over medium heat.
Once hot, add whole tomatoes, jalapenos, serrano peppers and garlic.
Roast in the pan until the skin is charred and blistered.
Place roasted vegetables in a food processor or chopper and pulse until desired consistency is obtained.
In a large saucepan, over medium heat, add ground beef, diced onions, salt and pepper. Cook until the meat is no longer pink.
Next, add diced potatoes, tomato mixture, and stir.
Reduce heat to medium low and simmer until potatoes are tender.
Serve with your favorite sides or over rice
