In a large stock pot, heat 2 tablespoons of oil.
Add the fideo pasta.
Toast the pasta, stirring constantly. About 2-3 minutes.
Remove the pasta from the pot. Set aside until ready to use.
Heat 1 tablespoon oil to the same stock pot.
Add the ground beef, salt, and pepper.
Cook the beef. About 4-5 minutes.
Add the potato, onion, garlic, jalapeno (if using)
Cook for 5 minutes.
Add the oregano, tomato sauce, water, and beef bouillon.
Cover and cook 10 minutes.
Return the toasted fideo to the pot.
Cover and cook for 7-8 minutes for a thinner stew.
Or cook for 10 minutes for a thicker stew.