Dinner Obligations

I was invited by colleges out to dinner at an Italian bistro type restaurant where I spent $20 on a small pizza.
No where in my diet is a meal with tons of cheese and bread and pasta. I decided to get a pizza because I thought it would be safest for my diet (and budget) instead of the entrees with pasta and cream sauce. My pizza was basically mozzarella cheese, some onions (maybe 10 thin rings) and tomato with seared tuna on top. There were six slices to the pizza each with one thin slice of tuna on it. I ate three slices (half a small pizza), then the remaining pieces of tuna from the rest of the pizza. I was able to not eat the remaining 3 slices of pizza while waiting for at least 10 min for everyone to finish dinner, then another 20min after our plates were cleared for them to bring the check. I don't think I'd ever voluntarily go to this restaurant again. On the way out I ended up giving my leftovers to a friend for him to share with his girlfriend. I hope they enjoy it because for me it was the best option. About an hour after I got home I got a huge craving for a ton of food. I really wanted that pizza and if I had the leftovers with me I would have downed the other half (probably around 500 cal min for each half).

Thankfully in the morning I just had a smoothie (about 300 cal) but it let me stay full from around 11:30 until 17:30 so I'll be eating more of these even though they're a bit cold to have in the morning.

Later in the day I was still a bit hungry so I cooked the chicken from my fridge which I marinated (read left in the fridge in a mix of garlic, ginger, mirin and sake then forgot about it). I am a bit shocked that the 300cal smoothie held my hunger at bay and the 580cal dinner made me super super hungry an hour and a half later. I guess my body knows the difference between food it can use and food it can't.