Smoking without smoke?

I tried doing a search, but could not find an answer, so here it goes.
What type of wood pellets are available, or would you suggest using, to cook without imparting a smoke flavor? Is that possible?
Of course... Nothing against smoked flavors, but for instance, if using a pellet cooker for pizza or perhaps cornbread or some dessert of sorts, I think my family would like it to taste like pizza, cornbread or whatever dessert is being baked or cooked without infused hickory or mesquite.
What type of wood pellets are available, or would you suggest using, to cook without imparting a smoke flavor? Is that possible?
Of course... Nothing against smoked flavors, but for instance, if using a pellet cooker for pizza or perhaps cornbread or some dessert of sorts, I think my family would like it to taste like pizza, cornbread or whatever dessert is being baked or cooked without infused hickory or mesquite.