One of the easiest things to do, even if you are bad at timing stuff, is vegetarian chilli.
Fry onions, add mushrooms, Quorn mince, any left over vegetables you might have in the house, fry it all up a bit more until the quorn starts to brown a bit, add herbs and seasoning (salt, pepper, oregano, basil, a ton of chilli powder if you like it hot, and paprika if you've got it), bung in a tin of tomatoes, a small tin of kidney beans, a veggie Oxo, a big squirt of tomato puree, a glass of red wine and a glass of water, then leave it to simmer until it tastes nice (about 45 mins in my experience). If you think it needs more herbs and spices, add them if you like, but beware that the chilli powder will taste hotter as the liquid reduces.
When you think it is done, turn it right down, put the lid on fully, and do the rice. It is basically impossible to overcook chilli, so you can't really go wrong.
Just change the spices and veggies for vegetarian spag bol.
My favourite veggie substitute brands are Cauldron, who do amazing sausages (I regulary feed my carnivore boyfriend with these) and work great in toad in the whole, and also Tivall, which you can get in Sainsbury's and kosher shops...they do great chicken style nuggets.
Quorn chicken style pieces are great for stir frys and if you are feeling adventurous try them in a pie in a white sauce with tarragon, which is what I make for myself every christmas dinner.
Bugger, I'm really hungry now!
Vicky