Preheat the oven to 375° Fahrenheit.
Line a baking sheet with aluminum foil and place salmon, skin side down if cooking with skin.
Combine 3 tablespoon of melted butter, garlic cloves, and brush the salmon with the butter.
Mix together brown sugar, Italian seasoning, 1 teaspoon ground paprika, 1 teaspoon garlic powder, 1 teaspoon ground cumin, ¾ teaspoon salt, and black pepper as desired. Sprinkle on top of the Salmon.
Bake the Salmon for 15-22 minutes or until flakey. Cut Salmon into chunks.
In a large saucepan, add 2 tablespoon of butter and melt over medium heat. Add onions and cook until lightly browned.
Add in spinach, peas, 1 teaspoon garlic paprika, 1 teaspoon garlic powder, 1 teaspoon cumin, 1 teaspoon garam masala, 1 teaspoon salt, and black pepper as desired. Cook for 2-3 minutes. Remove from heat and add in salmon chunks. Allow to cool.
Fill prepared pastry. Roll out remaining ¼ dough ball into a circle, place on top of the pie, and crimp the lid to the sides. Create a steam hole in the center of the top of the pie. Chill until the oven is ready.
Heat oven to 400° Fahrenheit. Bake for 45-60 minutes.