Are you eating a rice bowl for breakfast? You are really a morning person.
The kanji and the word are exactly the same. That means they share meanings as well.
You learned the on'yomi reading which is どん. This is just an extension of that, coming out to どんぶり. You can remember the ぶり part because you know what your favorite rice bowl is... it's a brie (ぶり) cheese rice bowl. So delicious, yum.