When you're polyglot you see similarities between languages. In this case, french helped me a lot.
Deveria --> look a lot like the french devrait ( should )
Ser - comer are both Spanish words,no ? (to be and eat)
Fajao --> i had to extrapolate from the image but it similar to the french fèves ( beans )
Sem --> you can easily understand it from the context and i saw enough Brazilian meme.
Estrogonofe + feijoada fica uma delícia! Eu comi na última festa de confraternização que tive na faculdade (2013) e foi uma delícia! Deu vontade de comer de novo!