I do the majority of food shopping and cooking. When I'm cooking dinner, DP will sometimes walk in towards the later stages and ask to exclude a certain ingredient (tonight's example was pesto in a tomato based sauce) or do something differently like cooking something with a lid off. I find this annoying interference. I already learnt many new recipes and adapted my cooking to meet their dietary requirements. I implied they can cook their own food if they don't want to eat what I cook. DP thinks this is unkind and I would be much more accommodating to a guest which there is some truth in but the regularity of it is different.