Set up breading station with beaten eggs in one bowl and panko in another, then bread pork cutlets and set aside.
Trim green beans, bring salted water to a boil, add beans, and cook for 5 minutes until tender-crisp; drain and set aside.
Heat oil in a large skillet over medium-high heat, fry breaded cutlets 3 minutes per side until golden, then set on a plate.
In the same skillet, whisk milk and mustard together, add cooked green beans, and simmer for 2 minutes until creamy.
Plate cutlets with creamy mustard green beans alongside and serve immediately.
Photo: Kristina Petrick / Unsplash