Mad at bf over food

I've been with him for 5 years and since the beginning I've gotten mad at him for eating everything in sight. Now since I'm pregnant it only makes me more upset. I knew there was a ton of leftover taco stuff and thought about it all day at work- only to come home and literally everything is gone. I get salad. I'm so freaking sick of lettuce being the only thing in the house for me to eat. I made enough taco stuff and planned for leftovers for tonight. But no, once again I'm stuck with salad. He's gained more weight than I have during this pregnancy. Ugh. Sorry for venting.