Sous-vide is a painless way to prepare steak, although it does need to be seared for a minute or two at the end for appearance's sake. Offer a steak sauce or finishing butter.

I would marinate and reverse-sear, then serve with baked potatoes and roasted broccoli. Green salad to start.

Baked potato or sweet potato, and either roasted vegetables or steamed vegetables, and a side salad

I do like sirloin. Practically everything goes with it. You could do fajitas if you want to disguise/stretch it.

I love roasted green beans. So I would do a baked potato and roasted green beans (With Penzey's Brady Street)

Sit fry
Chilli
Sheet pan
Mashed potatoes and Broccoli like PP.
Steak grilled cheese on sourdough

I make kebob's with sirloin. Marinade the kebobs.

I serve it with couscous, greek salad and tzatziki.

broccoli and mashed potatoes or baked potato. I like it simple.

I love steak but dislike sirloin. I would do a kiwi marinade to help tenderize it. If you dont want to grill, maybe a cast iron and butter recipe. Any veggies you have can be chopped up and quickly sauteed in the pan while the steak is resting.

https://natashaskitchen.com/pan-seared-steak/

Asparagus in a foil packet with lemon and butter. Fingerling potatoes, well-seasoned.

Stir fry! Beef and broccoli, pepper steak, etc.

I love to cook but rarely do steak. Prefer not to grill. What would you make for dinner tonight if you had a bunch of sirloin steak to use?