If using stew meat: heat olive oil over medium heat.  Add in meat, season with salt and pepper, and brown on all sides.  Remove from heat and set aside.  

If using ground beef: heat olive oil over medium heat. Add in ground beef, season with salt and pepper, and brown.

Remove meat from pan, and set aside.

In the same pan, add carrots, celery, and onions. Saute until starting to brown.  Add another tablespoon of olive oil, if necessary.  Add in meat, potatoes, corn, tomatoes, beef broth, water, and bay leaves.  

Bring to a boil, then reduce heat and simmer for 1.5 hours, if using stew meat, or 30 minutes, if using ground beef.