As far as the shrimp, well, you can sauté them in butter, and that's that.
Now, as far as the steak, I would use some pepper, but not salt at the start... Then, in a pan, (cast iron is the best,) I would use a little olive oil and LOTS of butter and pan fry the steaks, and baste them as they fry. Medium rare, just a little on the rare side of medium rare. Eat them about 5 to 10 minutes after they come out of the pan.
No steak sauce, worcestershire sauce, BBQ sauce, or ugh, ketchup! Just a plain STEAK taste!!!!!
You can also sauté some onions and mushrooms in the pan, and add them to the steak.
Rich