Are there many "cheat" foods that T1's know they can just eat without any care?
Eggs are a good bet, any kind of meat & fish, salads, green veg. If you like to snack anything under 10g of carbs won’t significantly increase your levels. I’ve found crisps under 10g, cottage cheese, crab sticks, pork scratchings (although bad for fat content), cucumber, cheddar cheese, crackers all work for me.
But it’s really all about testing for yourself & seeing what happens. For example I know that a 4oz cheese burger & bun will spike my levels out of range but a large portion of homemade lasagne is fine. If I crave a takeaway kfc chicken & chips is fine but a McDonalds isn’t worth it. A roast dinner is great but 4 roast potatoes is my limit & I eat more green veg.
Looking ahead once you can figure out your insulin to carb ratio you can eat whatever you want & just take an adjusted insulin dose. I’m not there yet & waiting on a dietician appointment to help.
It’s a lot of balancing of different factors too so don’t worry if you get it ‘wrong’ just make notes & adjust for next time. Daily activity plays a part too so if I know I’ll be inactive after lunch I will eat less carbs than if I plan to take the kids to the park or do a lot of housework.
Good luck & just keep trying