Subject + 吃饱 + 了
吃饱 (chībǎo) means 'to eat one's fill' or 'to be full from eating.' It combines the verb 吃 (to eat) with the resultative complement 饱 (full). This pattern of verb + result is very common in Chinese to express the outcome of an action.
我已经吃饱了,不用再给我加饭了。
Wǒ yǐjīng chī bǎo le, bùyòng zài gěi wǒ jiā fàn le.
I'm already full; you don't need to give me more rice.
你吃饱了没有?要不要再来一碗?
Nǐ chī bǎo le méiyǒu? Yào bù yào zài lái yī wǎn?
Are you full? Do you want another bowl?
中午吃饱了以后,他就想睡觉。
Zhōngwǔ chī bǎo le yǐhòu, tā jiù xiǎng shuìjiào.
After eating his fill at noon, he felt like sleeping.