Products with high fats in ......like cheese on pizza for example or caiflower cheese or macaroni cheese can be difficult to balance.
On a pump it is so much easier as we can lengthen the time the bolus takes to get in to us, to counteract the protein from things like, fried eggs, cheese etc...
People on injections may find raised bgs after eating these sorts of products, but besides doing a correction if it happens and checking and remembering (and especially with an active child... ) I would not advise any extra injecting for protein foods....