Easy meals for a vegetarian?

Please can i have some ideas for meals that i can make/buy as a lacto- ovo vegetarian (a lacto- ovo vegetarian doesn't eat any meat but eats all dairy products)? I'm 15 so i need meals that are either really easy to cook, or can be bought. I don't want foods that are really exotic, just normal foods. And lastly, i want them HEALTHY meals. Thanks!:-)