Cover a large baking sheet with foil and lightly spray with non-stick spray (I used an olive oil one) and set aside.
In a medium pot, add 2-3" of water and some salt and bring to a boil.
While you're waiting for the water to boil (put a lid on the pot to speed it up), trim the ends off the green beans.
Once the water is boiling, add the green beans and boil for approximately 3 minutes.
Meanwhile, add ice and water to a large bowl to make an ice bath.
After 3 minutes, drain the green beans and add them to the ice bath. Let them cool down, then drain and pat the green beans dry.
For the Flour Mixture
In a small bowl, add the flour, garlic powder/salt, paprika, and onion powder. Whisk it together and set aside.
For the Egg Mixture
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.
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.
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.