Chop potatoes, carrots, and celery into bite-sized pieces.
Add all prepped vegetables to the crockpot, along with the fire-roasted tomatoes, tomato sauce, beef broth, Worcestershire sauce, Italian seasoning, onion powder, salt, pepper, red pepper flakes, smoked paprika, and bay leaves. Stir to combine.
Pour the browned beef along with any juices from the skillet into the crockpot. Mix thoroughly.
Cover and set the crockpot on low for 6-8 hours or high for 3-5 hours, until the potatoes and carrots are tender.
About 15-20 minutes before serving, stir in the tomato paste. Add corn and peas, cooking uncovered until heated through. Remember to remove the bay leaves before serving.
Notes
Optional: Garnish with fresh herbs or a sprinkle of cheese for an extra touch of flavor.