In another bowl, whisk together the egg and milk. Add about 2 tablespoons of the flour mixture to the egg mixture and whisk it to combine. Set aside.
1 egg, 1 cup milk
For the Breading
In a third bowl, pour in your panko bread crumbs. If you're not using the seasoned kind, sprinkle in some salt and pepper and stir to combine. Set aside.
2 cups panko breadcrumbs
To Assemble
Set up an assembly line in the following order - green beans, flour mix, egg mix, bread crumbs, pan.
Dredge each green bean into the flour, then dip it in the egg mix, then dip it in the bread crumbs. Make sure you fully coat the green beans with each step. Line them in a single layer on your baking sheet.
Bake the green beans for around 15 minutes, until the breading is golden brown and crispy.
I mixed up a dipping sauce of ranch with a little bit of Frank's hot sauce. Simple & so good.