For those looking for a gateway to introducing your little one to red meat, a toddler beef and broccoli is the best way we know. The Chinese-American dish has it all: tender cuts of meat and little green trees; a mild, gently sweet and meaty sauce; and, should you choose, a soft bed of rice to soak it all up. Big kids love the dish; little ones can, too–with a little help.
While we (mostly) stick to the tried-and-true approach to beef and broccoli here, there are two important adaptations: 1) we sub in hoisin for oyster sauce, giving the flavor profile a slightly sweeter dimension; 2) our beef and broccoli pieces are cut smaller and more finely, such that a small child can hold/spear and chew each piece easily, without additional cutting or other work. Unsurprisingly, making the dish easier to eat makes it a lot easier for a toddler to enjoy, especially those who may be still acclimating to individual ingredients being put together in the same dish or bowl.
Be deliberate the first few times you serve this: individually select the beef and broccoli pieces that will be the easiest for your child to consume; add a bit more sauce atop the dish; check to see if they want over, besides, or absent rice. If trying to get your child to eat the dish as made–as opposed to having to separate each component–try serving it in a small bowl.
With a few alterations you can make this with chicken breast. Prep and marinate the chicken as above. Once you par-cook the broccoli, drop the chicken pieces into the hot water and allow to cook for 45 seconds; remove from pot and drain. When finishing in the wok, cook the chicken for roughly 75-90 seconds before adding the broccoli.
If looking to use a cut of beef other than flank, look for something as similarly thin as flank, such as flap or sirloin tip; you can also thinly slice a thicker cut (i.e., ribeye). Be sure and marinate it overnight to ensure the pieces are tender by the time you are ready to cook; some cuts may require a 30-45 seconds of cooking time in the wok, too.