First, if you make the food with love, that will be enough. You don't need to try to impress the chef. Make it a comfortable atmosphere where good friends will be happy to hang out.
Also, you may want to ask him to watch you make the sauce, saying you've never done a cream sauce like this before.
If you can, it will be better to not use canned sauce.
So here is the technique for a basic cream sauce for pasta.
lightly sautee garlic and shallots in good olive oil (extra virgin/first-pressed)
add some home made chicken broth (low or no salt) if you have it, otherwise, add white wine. Reduce.
add heavy cream or whipping cream and reduce. Add bits of chicken (i like it grilled with a good sear) and pre-cooked broccoli. Optional: fresh raw mushrooms, the more expensive, the better. Wash 'em, and if they are expensive, you might have to remove the stems. I.e, shittake's have a tough stem.
Reduce the cream some more, and ask the chef if it's reduced enough.
Add pasta, return to boil
throw in some fresh herbs, like basil, thyme, a bit of rosemary, sage, whatever you have.
Finally, throw in some grated dry cheese, like parmesan or romano.
If you have good tongs, separate the pasta into clumps, and roll it into balls (for each plate) and serve it like that on the plates, then spoon the remaining sauce, etc, around the ball on the plates.
Finally, sprinkle more cheese, fresh-ground black pepper on top, and if you have it, garnish each plate with a sprig of the fresh herbs, like basil flower tops.
If you can also do it, try to brown some baguette bread with butter in a separate pan. Slice the bread diagonally, put a small hunk of butter under it in a pan on medium heat. Turn over with another small humk of butter to brown the other side.
Serve with the pasta.
This is NOT a low cal meal.