Crispy veggie and herb snacks

I have a bunch of friends who are trying to go keto and/or reduce their carbs. In grain-free land that's pretty much how we roll (not always by choice sometimes). I've collected a few recipes to help deal with that craving for potato chips that will inevitably develop. For most of these some sort of mechanical slicer would be a good idea, such as a mandoline. Some of the recipes also use a dehydrator. You can use an oven as a dehydrator, but it doesn't really work as well, and it uses a lot of energy, so I've included some baked alternatives.

Oven or dehydrator tomato parmesan crisps

Apple Peel Chips

• Thinly slice beefsteak or other meaty tomato (try for 6 cups, or go by how much room you have in your dehydrator/oven- the rest of the recipe is adjustable to your quantities)
• 2Tbsp olive oil (or other oil as you like)
• 2tsp sea salt
• 1tsp garlic powder, or very finely minced fresh garlik (you want it to spread evenly)
• 2Tbsp parmesan cheese (or more if you really like cheese)