@Mattrblue I always recommend M&S Simply Food their 3 for £7 range in the deli section. Check out Rollitos (cigar shaped cheese rolled in ham, 3 different varieties) packets of cooked chicken thighs, mini peppers stuffed with goats cheese, cooked salt & pepper calamari, probs other little pots I cannot remember, then look at their “Just Add” range of single portion tasty meats and fish also 3 for £7. Perfect for lunch, my OH sometimes has the Rollitos as a fast breakfast before going out and he’s not diabetic. Add pots of egg mayo and coleslaw, mixed salad, perfect for busy people.
Its just a different mindset, we have all been there. Best wishes.