Spice Rubbed Steak Wraps

Name: Spice Rubbed Steak Wraps
Ingredients: 1 1/2 pounds flank steak; 1 large garlic clove; 1 teaspoon each, ground cumin, coriander, cinnamon and sweet paprika; 1 teaspoon salt; 1/2 teaspoon freshly ground black pepper; 1/4 teaspoon cayenne pepper; 1 tablespoon olive oil; 1 large red onion, peeled and cut into 1/2 inch thick rounds; 1 red bell pepper, stem and seeds removed and cut into strips about 1/2 inch wide; 1/2 cup Greek-style thick yogurt; 1/2 cup crumbled feta; 1 tablespoon lemon juice; olive oil; 4-6 soft flat breads (like Syrian ones) or pitas