Just agreeing with everything that’s already here, and adding that we were taught that a healthy diet for someone with T1D is the same as a healthy diet for anyone else.
It’s just (ha! “just”!) that people with diabetes need to give themselves the insulin that other people’s bodies produce automatically. So eat a healthy diet because everyone needs a healthy diet, but for your T1D, take insulin.
Now, it’s a little bit more complicated than that, of course. Some foods enter the blood stream faster than others, and the insulin you take probably won’t bring your blood sugar down at the same speed as the food you eat brings it up.
So especially at first, we tended to think of very fast-acting carbs like juice as if they were medicine. We’d give my daughter juice to fix a low, but not just to drink because she’s thirsty. Not because there’s anything wrong with drinking juice every once in awhile, but because the sugar in juice makes it into your bloodstream so much faster than the insulin can bring it down. The insulin will catch up eventually, but having high blood sugar for a few hours until then doesn’t feel very good, and it’s not as good for your body as staying in range would be, either.
Foods that pair carbs with a lot of fat (pizza, cheeseburgers, lasagna, that ribeye with potatoes and dinner rolls — yum!) have the opposite problem. The fat slows the carbs down too much, and your insulin races ahead. So you end up low at first, only to go high later.
As you get more experience with how your body reacts, you will get better at matching when you take how much insulin to different foods and food combinations. And some of the alternative recipes you’re seeing might be from people with T1D who want to eat lower-carb because they find that easier to manage. That’s a totally valid choice, but it’s not required. There are some very experienced posters on this forum, like Dennis @Dennis, for example, who eat a “normal” diet and have truly excellent blood sugar management.
Another big variable in the carbs + insulin equation is exercise. You’ll find out, over time, how your body reacts to different kinds of activity, and then that will factor into your choices, as well. Most (though not all) people find that sustained aerobic exercise brings their sugar down, for example, and if that’s you, then on days when you exercise more, you’ll need less insulin or more carbs or both in order to stay in range than you do on days when you exercise less.
Other things factor in, too: stress, heat, illness, etc., but as I said in another thread, you have enough on your plate at the moment. The bottom line is where I started: a healthy diet is a healthy diet.