Heat oven to 350 degrees.
Spray 3-quart baking dish with a non-stick cooking spray.
Cook linguine al dente' as directed on package.
Drain, toss with 2 tablespoons butter. Set aside.
In a large bowl stir together, chopped artichokes, Alfredo sauce, milk, and dill; mix well.
Add cooked buttered linguine, 1/4 cup Parmesan cheese and small shrimp; toss gently to coat.
Spoon into prepared baking dish.
In a small bowl, combine topping ingredients, mix well.
Sprinkle over mixture in baking dish.
Bake 45 minutes or until casserole is bubbly and top is golden brown.