I've got quite a few custom food downloads now, which I love. The thing is some of them are available all day, and I don't want to have the option for 'Moo shoo pork' or 'Coleslaw' coming up at breakfast time! Does anyone know if there's a way to remove them from the breakfast menu but still have them available for lunch and dinner?

I think it is great when my sims can cook any meal at any time. I often have my sims cook a few extra meals to keep in inventory for later. That way, extra time is used to cook meals for those times they do not have time to cook. Like pancakes. In real life, I like eating pancakes in the evenings, so the only way my sims can eat pancakes when I am eating pancakes, is when they already have them in their inventories.

But I also have a bunch of custom meals so my sims can eat stuff that doesn't make me feel ill when watching them cook it. Some of those pre-made meals almost make me sick after seeing my sims make them hundreds of times. It is great those meals can be cooked at any time.

It is an annoyance for you, but it can really be a plus for you and your sims.

I don't see too much of a problem here, but I might suggest asking the person who made those items to begin with about changing things like that.

You can change them but it requires making some simple bhav edits with SimPE. This thread has the details on what you need to edit but it's not a tutorial so you'll need to be at least a little familiar with editing BHAVs. And I'd just like to add that I hate my food menus all cluttered up and feel the same way you do! If I want pork chops for breakfast I can use the Make Many option anytime of the day and just cancel out after my sim has made one portion.