Grilled Garlic Steak Salad

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Spicy Garlic Dressing
1/3 cup olive or vegetable oil
2 tablespoons chopped fresh parsley
3 tablespoons red wine vinegar
1 tablespoon lemon juice
1 teaspoon chopped fresh or 1/2 teaspoon dried oregano leaves
1/2 teaspoon crushed red pepper flakes
2 cloves garlic, finely chopped
Salad
1-pound beef boneless sirloin steak, 1 to 1 1/2 inches thick
1 large red or yellow bell pepper, cut into strips
1 cup sliced mushrooms (3 ounces)
1/4 teaspoon salt
1/8 teaspoon pepper
6 cups bite-size pieces salad greens

1. Heat coals or gas grill for direct heat. In tightly covered container, shake all dressing ingredients; reserve 1/4 cup.
2. Cover and grill beef over medium heat 15 to 20 minutes, turning once, until desired doneness. In medium bowl, toss bell pepper and mushrooms with 2 tablespoons of the dressing; place in grill basket. Cover and grill vegetables 5 minutes, shaking grill basket to turn vegetables occasionally, until bell pepper is crisp-tender.
3. Sprinkle beef with salt and pepper; cut into 1/4-inch slices. Toss beef and reserved 1/4 cup dressing. In large bowl, place salad greens, vegetables and beef. Add remaining dressing; toss.