Add 1 teaspoon fennel seeds to a pot of water and bring to a boil. Cook 8 ounces pasta al dente according to package directions.
Drain, keep warm, and set asside. Note: the pasta will fully cook when added to pan with the other ingredients.
Place a 12-inch skillet over medium heat and add ¼ cup butter and 2 tablespoons olive oil. Heatr until it begins to sizzle.
Once oil and butter are hot, add 2 teaspoons finely chopped garlic and 1 teaspoon dried parsley flakes. Sauté 30 seconds.
Add ½ cup white wine. Cook for 1 minute.
Add 1 cup portabella mushrooms, ½ cup asparagus tips, and ½ cup bite-sized pieces red bell pepper. Sauté until soft for approximately 3 minutes.
Add shrimp. Cook, turning once for 4 to 5 minutes or until shrimp is cooked through or no longer translucent.
Add cooked pasta to shrimp mixture and toss lightly until pasta is well coated.
Sprinkle ½ cup parmesan cheese, 1 tablespoon fresh dill, and salt and pepper to taste.