What should I bring to my birthday bbq?

It’s in 2 weeks; and there’ll be 5 of us. 3 eat meat. 1 is a pescatarian. 1 is a vegan. I was thinking I get home made beef rissoles, lamb chops, marinated chicken wings, big, meaty mushrooms, salmon fillets and corn cobs?

What should I bring to my birthday bbq?
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