If you lived in Sweden during the 70’s, you would eat the stuff that was popular worldwide ( in the Western culture anyway) plus some unique Swedish stuff.For fully retro, try salad cream instead of mayo. Then, once adjusted, you can work in the prawn cocktail and black forest gateaux. Baby steps, mind. You needed a robust palate in the 70s
The question has made me realise that unless I head to the woods and cook there, several months and probably more would pass before partaking of an ommelette or scrambled egg.How many eggs can you get through in a week?
If you're into veganism you wouldn't be eating eggs or cod roe so the mayo isn't the issueYou can also put a dab of Mayo beside the Creamed Cod Roe.
If you are into Veganism, instead of the Mayo, put some Creamed Horseradish beside the CCR.
You can skin a cat in many ways!