Preheat the oven to 350°F
Combine oats and baking soda, honey, brown sugar, melted butter, and pumpkin pie spice.
Scoop mixture into the wells of the Pampered Chef Snack Bar Maker. Sprinkle with mixed toppings (1 cup).
Press down with the Mini Nylon Serving Spatula.
Bake for 10-12 minutes, or until the oats start to brown.
Remove the Snack Bar Maker from the oven to a cooling rack.
Cool for 5 minutes. Cover with the lid, and chill in the freezer for 15 minutes, or in the refrigerator until set.