Do you have a recipe you can share for this circumstance?

This is off the wall but how about an oriental sweet and sour sauce?

Mayonnaise mixed with sour cream, curry powder and mango chutney would be a nice topping for the pork.

Something like some balsamic onions would be good.

Or a mushroom duxelle

I haven’t tried the recipes above. They are just suggestions. Someone might have recipes for these things that are tried and tested. Or you could have a trial run.

Gordon Ramsey did a Beef Wellington for Christmas day that I wouldn’t mind trying and that used a mushroom duxelle with the beef too.

Have to think on the lighter option.

If you like spicey try this one.

It is milder than most of mine, I usually use 4–5 habaneros in my salsa, but still has a nice habanero bite.

In the distant past, when I used sliced tenderloin of beef for similar sandwiches, I used sour cream mixed w. horseradish as an easy and piquant topping.

Mint jelly or an applesauce with a hint of Louisiana hot sauce and garlic

You could do sweet pickle slices, then it would be sort of like a Cuban sandwich, with mustard and mayo available.

Roasted red peppers.

Or, an assortment of roasted veggies (peppers, eggplant, zuchini). They can add them to the pork sandwich and also gives a veggie option if you have vegetarians present, or someone who does not eat pork.

Any fruit chutney would work. Also mustards. Or mustard mixed with sour cream.
What scotch or scotches will you serve? just curious. I love scotch; Oban is my favorite.

Not really a recipe, but something I picked up working at a hotel, good for all sorts of get togethers and so simple a 5 year old could prepare it: dips.

1:1 mayo and ketchup for some simple yet amazingly tasty dip sauce

Place the above concoction in a round bowl in the middle of a round plate and surround with sliced (diff. colours of) paprika, small tomatoes cut in half and celery (optional). Good for any occasion – we used to put these up in the reception at weddings. Good stuff, easy to make, even looks nice if you put some thought into it.

Hope you find this useful!

While you have the grill fired up; grill pineapple slices for a topping and caramelize onions in a pan to mix with mayo for another topping or served alone.

You could also make a cole slaw dish for a topping depending on your taste.

Here are some interesting and delicious sounding ideas.

Red Cabbage Slaw which would look very pretty for Christmas.

Mushrooms in Red Wine Sauce.

Thick Yogurt with Mango Chutney and Cilantro

Coffee Barbecue Sauce

Smoky Chipotle Orange Dip with Sour Cream and Mayo

Argentinian Chimichurri Sauce which would be nice for Christmas because it’s green.

Mmmmm