When I started I kept it VERY simple because I didn’t want to think of what I can and can’t eat… I just wanted to eat.
I made stuff like bunless burgers (ground meat, egg, pepper, salt) with cheese, avocado or guac on top, maybe a bit of onion, or fried egg.
I also ate spinach with indian spices and cream cheese.
Eggs and bacon, eggs and sausage, omelettes…
Sometimes I would get stuck on one recipe and just eat that until I got bored of it.
I would definitely avoid the special items for now. Just stick with meat, eggs, some low carb veggies (there are charts we can provide if you need them), butter, cream, cheese, etc
A meat (or fish) dish with a side of veggies cooked in butter is extremely simple and satisfying!
After a while, you can branch out to more complicated or involved recipes… if you want to. But you don’t have to.
Edit: I’ll also note that our food budget (for 3 people) has been cut nearly in half via keto. If we wanted we could probably get it lower. You eat a LOT less on keto, and that saves you money. Plus the cost of preparing your own (simple) meals versus prepackaged food… keto wins every time.