Best Louisiana Shrimp Dip Recipe - How to Make Louisiana Shrimp Dip

Ingredients

• 1 tbsp. butter
• 1/4 onion, finely chopped
• 1 red bell pepper, finely chopped
• 1 lb. shrimp, chopped into 1/2" pieces
• 2 garlic cloves, minced
• 1 tsp. Cajun seasoning
• 2 tbsp. lemon juice
• 1 tsp. Worcestershire sauce
• Kosher salt
• 6 oz. cream cheese, softened
• 1/4 c. sour cream
• 3/4 c. shredded mozzarella, divided
• 1/4 c. freshly shredded Parmesan
• 1/4 c. sliced green onions, plus more for garnish