Cut steak diagonally across grain into thin slices. Heat a large nonstick skillet coated with cooking spray over medium-high heat. Add half of meat, and stir-fry 2 minutes; remove meat from pan, and keep warm. Repeat procedure with remaining meat. Add broccoli to pan; sprinkle with water. Cover and cook 3 minutes or until crisp-tender.
Combine broth and next 4 ingredients, stirring well with a whisk. Drain oranges, reserving 1/4 cup liquid; stir liquid into broth mixture.
Add meat and broth mixture to broccoli; cook, stirring constantly, until thick. Gently stir in oranges.