In a large pot add oil and heat it up on medium (2 min). Add onion and carrot and cook until transclucent (5 min). Add beef, stir and continue sautéing until the meat starts changing color (3 min).
Add green beans, stir and continue sautéing (7-8 min). Add a little bit of water as necessary. (You'll be adding about 1 cup of water during sautéing and 4 cups near the end. Sub with beef broth if you wish.)
Add potatoes, stir and sauté (10 min). Add a little bit of water.
Add tomatoes, tomato sauce, and paste. Also, add 4-5 cups of water. Stir well, and add in the seasonings and bring the temperature up to high. Cook for 10 minutes. (Add a beef bouillon cube for additional flavor if you'd like.)
Add beans, and peas. Stir, and cook for 5-7 minutes.
Add pasta and bring the temperature down to the lowest. Simmer for another 5 minutes.
Serve hot, with sour cream (optional). Leftovers will keep in the refrigerator for 3 days or in the freezer for 1-2 months in a sealed container. When ready to eat heat up and add a little bit of water if neccessary.