For the Beef Marinade

• 2 pounds beef sirloin or top sirloin, cut into 1½-inch cubes – Tender and flavorful grilling beef.
• ¼ cup barbecue sauce – Adds smoky sweetness.
• 2 tablespoons olive oil – Helps lock in moisture.
• 1 tablespoon Worcestershire sauce – Adds savory depth.
• 2 garlic cloves, minced – Rich garlic flavor.
• 1 tablespoon soy sauce – Enhances umami flavor.
• 1 teaspoon smoked paprika – Adds smoky warmth.
• 1 teaspoon onion powder – Boosts savory flavor.
• 1 teaspoon black pepper
• 1 teaspoon kosher salt
• ½ teaspoon chili powder (optional) – Adds mild heat.

For the Vegetables

• 2 bell peppers (red and yellow), cut into chunks – Sweet and colorful.
• 1 large red onion, cut into wedges – Becomes sweet when grilled.
• 2 zucchini, sliced into thick rounds – Tender and mild.
• 8 ounces button mushrooms – Juicy and earthy.
• 2 tablespoons olive oil
• Salt and pepper to taste

Optional Garnishes

• Fresh parsley
• Chopped cilantro
• Extra BBQ sauce
• Lemon wedges
• Cracked black pepper