Hi Kitty, welcome to the forum!
If you have a shop relatively close, you could walk there to buy the ingredients for that evenings dinner.
That way you'd have to go for that walk.
My husband walks at 5 am brrrr when it's dark and raining.
I have to wait until 10 am.
If walking or exercising in the freezing winter weather isn't your thing,
you could always just cut your food intake down a little to lose weight instead.