Is spaghetti and meat a healthy dinner or is it fattening?

Depends on how you cook it. If you're using ground turkey or lean beef, your meat will be a little healthier. Also depends on if you're using traditional pasta which has a bunch of complex carbs which aren't the best, or if you're using whole wheat or multi-grain noodles. I recommend Barilla plus brand. You get both protein and omega-3 benefits in it. And of course, drowning your spaghetti, sauce, and meat in cheese will also just further negate your dish. Like some of the other guys said, eat in moderation.