Words adding up to 7 in Mispar koton, in order of the seuda; Ner, Yayin, Challah, Dag, Maran, Bazar, Kugel (spelled chaseir). That’s at least 7 things.
“He for example thinks one should eat Chulent at Melava Malka instead of the minhag Hamakon of Pizza (Because there is some “Holiness” of Chulent over Pizza)” – see Gemora Shabbos 119b I believe – the story of the egla tilsa – lechatchila one should eat freshly cooked bosor for Melava Malka (and wash).