Mediterranean Beef Kebabs with Greek Salad

Ingredients

• 1.5 pound beef sirloin
• 0.5 cup plain Greek yogurt
• 1 medium red onion
• 1 medium green bell pepper
• 1 medium red bell pepper
• 0.5 cup cherry tomatoes
• 1 cucumber
• 1 head romaine lettuce
• 0.25 cup olive oil
• 2 tablespoon red wine vinegar
• 1 tablespoon lemon juice
• 1 teaspoon Dijon mustard
• 1 teaspoon honey
• 2 teaspoon dried oregano
• 1 teaspoon dried basil
• 1 teaspoon garlic powder
• 0.5 teaspoon salt
• 0.25 teaspoon black pepper