Roughly speaking budget about a quarter of a cup of quinoa per person. We use red quinoa but a mix of red and black works well for a lighter dish with a bit of bite. If you're looking for a stodgy comfort food number then use white quinoa, it just won't work quite as well as salad the next day but it'll still be yum.
First you're going to find that one dish that your mum gave you that goes both on the stove top and in the oven. If you don't have one don't worry, you can fry the stuff first then chuck it in the oven safe pot.