Preheat oven to 375 degrees F.
In an 8-9” cast-iron skillet, melt butter over medium heat.
Once melted, add the strawberries, brown sugar, flour, vanilla, cinnamon, cardamom, and salt. Stir until everything is well combined. Remove from heat.
In a separate bowl, whisk together the flour, oats, brown sugar, baking powder, cinnamon cardamom, and salt.
Using your fingers or a fork, cut in the butter until the mixture resembles crumbs.
Sprinkle over strawberry mixture and top with pumpkin seeds.
Bake in preheated oven for 30 minutes, or until topping is golden and strawberry filling is bubbling.
Serve, preferably warm with ice cream.