For the Beef Skewers:

• 2 - 3 lbs. cubed beef
• 2 bell peppers - cut into 1 -2 inch pieces
• 1 onion - sliced thick
• 1 quart button mushrooms - sliced in half
• Skewers - soaked before using on the grill

For the Marinade:

• Juice of 1 lemon
• 4 cloves of garlic - chopped
• 1/2 cup of Italian parsley - chopped
• 1 tbs. capers - chopped - plus a tablespoon of caper juice
• 1 tsp. dried oregano
• 1/4 tsp. salt
• 1/4 tsp. black pepper
• 2 - 3 tbs. olive oil