Eat a salad before the main course. Salad is good because it provides fiber and hydration which is satisfying without excess calories. Try not to put extra dressing or cheese on the salad, since this will just add fat and calories which you are trying to avoid.
Hunger is a problem for people trying to lose weight. Next time you are hungry, pause and think: is it true hunger or am I eating for non-food-related reasons? Many times we eat to satisfy emotional needs, or because we're tired, or need comfort. Often, we're just thirsty. Next time you feel hunger pangs, first examine your motives for feeling hungry, and then try drinking a very large glass of cool water. Before you eat again, see if the drink has satisfied your need.