Tenderize round steak with a meat mallet. Pound it out to about 1/2 inches thick.
Slice into strips crosswise.
Add flour, kosher salt, garlic powder, black pepper, and paprika to a bowl.
Dredge the steak pieces in the flour. Shake off excess.
Heat large skillet over medium heat. Add cooking oil.
Add floured steak strips to hot skillet in batches. Don't crowd. Cook each steak strip for 2 to 3 minutes on each side until browned.
Remove steak and set aside.
To the same skillet, add onion, celery, and bell pepper. Add more oil if necessary. Cook the vegetables until tender, about 5 minutes. Stir frequently while cooking. Add garlic cloves and cook an additional 2 minutes.
Stir in tomato paste.
Add remaining ingredients, except steak strips. Stir well and deglaze the skillet.
Add browned steak strips and nestle them in the braising liquid.
Cover. Cook in a preheated oven for 3 hours.
Remove and gently stir.
Serve warm over cooked rice.