1. 1. Heat the olive oil in a large pot over medium-high heat.

2. 2. Add the beef cubes and cook for 5-7 minutes, or until browned on all sides.

3. 3. Add the diced potatoes and canned tomatoes to the pot, and stir to combine.

4. 4. Bring the stew to a boil, then reduce the heat to low and simmer for 30-40 minutes, or until the potatoes are tender and the beef is cooked through.

5. 5. Season with salt and pepper to taste.

6. 6. Serve hot, garnished with fresh parsley if desired.