DO-AHEAD TIP: Marinate steaks for 20 minutes (see recipe).
Place steaks on a large platter; cover their surface with 2 tablespoons of olive oil then sprinkle with parsley, salt, and pepper.
Cover loosely and refrigerate for 20 minutes.
In a medium skillet, heat 1 tablespoon of olive oil over medium heat.
Add onion and garlic; sauté for 3 to 5 minutes or until onion is soft.
Add jalapeno, beans, cumin, salt and pepper; cook for 5 minutes or until heated through.
Preheat an outdoor grill or indoor grill pan to medium heat; grill steaks for 5 minutes per side or until browned and fork-tender. Cut into slices and serve with warmed beans.