Granny's Clam Fettuccine - Channelin' Granny

Ingredients

• 1/4 pound (1 stick) unsalted butter
• 3 tablespoons olive oil
• 3 cans (6.5 oz each) chopped clams, drained (reserve juice)
• 3 green onions, chopped
• 2 cloves garlic, minced
• 3 tablespoons fresh parsley, chopped
• 3 tablespoons fresh celery leaves, chopped
• 1/4 teaspoon dried basil
• 1/4 teaspoon dried oregano
• 1 (4-oz) can mushrooms, chopped (drained)
• Freshly ground black pepper to taste
• 12 ounces fettuccine, cooked according to package directions
• Grated Parmesan cheese for serving