Here’s my way of doing it without the rigidity of meal plans. I like the flexibility. I think I’ve learned more by beginning to understand the amounts of protein in a bit of cheese or fish, or the amount of carbohydrate in 100g of lettuce or cauliflower.
First a have a quite a few ingredients that I will use - so in the fridge there’s a tray of fats: salted and unsalted butters, coconut oil, ghee, lard, and various pots of dripping from the different meats I’ve cooked.
And there’s a selection of green leaves - lettuce, spinach (and frozen spinach in the freezer), and other low carb above ground veg.
I’ve an array of different bottles of oil, some vinegar, lots of different spices and herbs, and different salts.
I always have eggs.
There are a few tins of protein in the cupboard, sardines, corned beef etc
There’s a jar of homemade mayonnaise (which, surprisingly, lasts for ages and ages).
In the freezer there are different proteins - and that’s another thing I like about not having a meal plan. I only buy protein when it’s reduced in price. I’m not forced to buy full priced ingredients just because they’re on a plan.
The decision what to cook is then determined by what I have and what I fancy and not what I’m told (by the meal plan) to eat.
I use My Fitness Pal to keep a running total of the macros. The My Fitness Pal recipe section is very useful as it facilitates easy bulk preparation and freezing - I put the weight of each portion as part of the name of the recipe “Soup - 100ml”.
(But I don’t enter my weight as I’m not providing them with data!!)
I work on 100g and not by some spurious notion of portion size. A portion size, say of carbs, is determined by what I want to eat, and how many carbs I’ve already eaten since I got up, or what I want to save for the evening.
Or you can use the meal plans on the Diet Doctor website, and use MFP to adjust the quantities according to your calculated macros.
You could follow the Diet Doctor “get started” meal plans - perhaps this should have been the first sentence!
And as for loving beef and meat, there’s lots of information about protein and ketosis here on the forum. Salutary, it’s my downfall too.