Organise yourself in advance with a "meal in a bag" - a Ziploc bag with the rice/pasta, seasonings, any packets or tins etc, or the veg (onion, garlic cloves, carrots etc) that are needed.
We like to do things in foil parcels - fish, veg and diced potatoes all together, with some butter and herbs. (I reckon olive oil would work fine for the DF part).
Frittata type omlette - with either leftover potatoes and veggies, or freshly fried up ones. Bacon or chicken is nice in that.
YYY to bringing the first 1/2 evening meals from the home freezer - a spag bol, chilli, curry etc - to defrost slowly and also be iceblocks for the first day or so!
If you do veggies on BBQ, either in a tinfoil tray or on skewers, try to do extras for something like the omlette I mentioned the next day, or to mix into couscous. You could even cook for the meal you are eating, and then stick a second batch on while you eat to make use of the coals for the "leftovers"!
Do you have an alternative to cream? A pasta carbonara would be quick and easy - fry an onion, fry bacon pieces, mix an egg and cream with ground pepper to season in a bowl. Cook pasta, retain about a cup of pasta water to loosen sauce, throw in onion and bacon, and the wet sauce mix - stir quickly and the heat of the pasta should "cook" the eggy/cream mixture. Use cooking water to add liquid if needed, keep stirring so eggs don't scramble, but delicious and fast.