Shish Kabob a la Holly Recipe

Name: Shish Kabob a la Holly Recipe
Ingredients: 12 (10 inch) wooden skewers; 1 green bell pepper, cut into large chunks; 1 lb peeled and deveined shrimp; 1 small zucchini, sliced 1/4-inch thick; 1/2 lb skinless, boneless chicken breast - cut into cubes; 1/2 pint cherry tomatoes; 1 lb beef steak , cut into cubes; 24 pearl onions; 1/2 lb large fresh mushrooms, halved; 1/2 cup olive oil; 1/4 tsp garlic powder , or to taste; salt and ground black pepper to taste; 1 lb fettuccine; 2 tbsp softened butter; 1/4 tsp garlic powder