No 'modern' take-aways or cook/chill can match the ease of preparation, or the nutritional value of bread, salads and an olive oil dressing.
It is often cheaper to call in at the nearest supermarket for fresh fruit and vegetables for salad, than to buy them ready prepared.
A pressure cooker will often cook a meal, prepared from fresh ingredients, faster than it takes to thaw a frozen meal.
Where you do need the ready prepared meals, beware of excessive fat and salt in sauces and fillings.
It is the balance of the diet over weeks, months and years that determines your overall health.