Cooking your own meals with unprocessed ingredients is one of the basic parts of a healthy diet.
If you practice a bit cooking a home made meal can be done in less than 30 minutes. If times a issue I have some 20 minute recipes.
I make sure to have a basic stock of ingredients like pasta, flour, some vegetable stock cubes, some assorted spices, onions, fresh garlic,...
https://www.health.harvard.edu/nutrition/more-evidence-that-ultra-processed-foods-harm-health