01 -
Preheat oven to 375°F (190°C).
02 -
Sauté onions and bell peppers in olive oil over medium heat until soft, 5-7 minutes.
03 -
Add steak and garlic to vegetables, cook until steak is browned but tender, 4-5 minutes.
04 -
Slice baguette lengthwise without cutting through, hollow out some interior.
05 -
Fill bread with steak mixture, top with cheese. Bake 10-12 minutes until cheese melts.