Place the beef stew meat, beef broth, can roasted tomatoes, diced green pepper, diced onion, chopped garlic, bay leaves, salt and pepper and Mrs. Dash seasoning in the crock pot and cook on high for 4 hours.
After 4 hours add the beans, mixed vegetables, yellow squash and zucchini to the crock pot.
Adjust the seasonings if needed.
Cook for another 2 hours on high.
If a thicker broth is desired mix 2 teaspoons cornstarch into ⅛ cup of water. Add the cornstarch slurry to the crock pot and stir occasionally during the last hour of cooking.