Farmer's walks into the kitchen, followed by low volume, high frequency eggs and potatoes.
Seriously, what's your current height and weight? And I'm guessing you're pretty lean with some definition?
Somatotypes (ecto, meso, whatever) have basically nothing at all to do with actual training and nutrition. It's best to simply forget about them. But if you're telling me that both of your parents are on the skinnier side and did well at endurance sports, that's a little more relevant (but still shouldn't be the be-all, end-all of designing your plan).
Like Yogi said, you can and should train like any other guy who wants to add size. A smart plan that trains the entire body (not meaning in each session, simply not neglecting any bodyparts) with consistent eating (abundant calories from protein, fat, and carbs).
Plenty of programs on the site fit the bill. For an eating plan, I like this general approach, but there's a bunch of other simple, effective options.