There are great substitutes for these - try coating chicken in ground almonds, sprinkle oil over and cook in hot oven. You can also make halloumi chips with a ground almond coating, good with pepper and chili added to the almonds, or make butternut squash wedges. Home made butternut squash crisps- if you have a square grater there is a side to finely slice veg for crisps, try butternut squash or sweet potato. I also make kale crisps, just pull off the leaves, sprinkle with oil and bake at 190C for a few minutes then add salt.