Step 1

Preheat oven to 350 degrees F.

Step 2

In a large bowl, mash together the sweet potatoes, crushed pineapple, brown sugar, melted butter, salt, and ground cinnamon.

Step 3

Spread mixture into a 9x13 baking dish.

Step 4

Bake 30 minutes, or until heated through, stirring a few times. Top with mini marshmallows and return to oven until marshmallows are golden brown, about 10 minutes, rotating halfway through.

Step 5

Serve immediately.