My nose twitched when I smelled the delicious breakfast.
Our family always has rice, miso soup, omelets, and dried fish for breakfast.
"Did you just tell Koichi about his surprise breakfast party?" "Oh! I didn’t know it was a surprise."
You know how 晩ご飯 is "dinner"? Well, that word is so 12 hours ago. This is morning and in the morning your meal is breakfast.
The readings are the ones you learned with the kanji. It's also like the vocab: 朝 is like the vocab version, あさ and ご飯 is like the word you learned, ごはん.