You could make in advance some breakfast muffins (like an omelette in a cup) with sausage/cheese etc
As a snack I’ve been enjoying a high protein vanilla yogurt, adding cinnamon and salted peanuts and then using it as a dip for slices of a pink lady apple.
I’ve been having protein yoghurt or protein pudding for a sweeter snack. These also seem To help my fasting level if I have it before bed. Whizzy cream (full fat) with sugar free jelly is also quite nice as more of a ‘treat’ Otherwise I’m just cheese and nuts for snacks. Did find some Protein bars in Aldi that were lower carb and sugar that have been ok. Also nairn oat cakes with cream cheese and a sliced strawberry on top. I’m nearly 38 weeks and am Definitely ready for some Proper treats!! Good luck
https://pin.it/1F37ibx9B I love these. They're like egg biscuit things. You can put whatever veggies or cheese you want in them and it's easy to scale up to keep in the freezer for busy mornings.