Preheat oven to 350°F. Line baking sheet with foil.
Pat shrimp dry. Butterfly by slicing back almost through, press flat.
Toss shrimp with oil, paprika, Old Bay, garlic powder, onion powder, Italian seasoning, pepper.
Wilt spinach in skillet, squeeze dry, chop. Mix with crab, artichokes, mayo, breadcrumbs, cheese, garlic, mustard, Worcestershire, herbs, lemon juice/zest.
Scoop filling into each shrimp. Arrange on sheet curved-side up.
Bake 15-20 min until shrimp pink and filling sets. Broil 1-2 min for golden top.
Melt butter with garlic and dill. Drizzle over hot Stuffed Shrimp. Serve immediately.