Just curious, do you dislike cooking? Or are you really short on time every day? Because if you don’t hate cooking, and you love eating, then there’s no reason not to just cook fresh and something different daily. If time is an issue, then there are plenty of quick recipes with simple ingredients that you can use to whip up a dish in no time at all - Jamie Oliver has a few books and shows on this (15 Minute Meals / 5 Ingredients – Quick & Easy Food etc), if you need some inspiration.
Once you get into the habit of cooking fresh daily, then you won’t really differentiate between weekends and weekdays. Instead, you may even see weekends as a chance to cook those elaborate and fancy dishes you don’t have the time for during the weekends, or experiment with a new cuisine or even a cooking technique that you haven’t employed before.
Having the right gear also helps save a lot of time, such as a pressure cooker or an instant pot, an air fryer etc. Try and get your kitchen equipped with all the essentials, optimize the way you organize and access your ingredients, spices etc. Watch a few cooking shows like MasterChef to get ideas on how to streamline your kitchen and workbench, how to multi-task etc to get things done in the shortest possible time.