Place each medallion between 2 pieces of plastic wrap and pound with mallet to about ½ in thick or thinner. Season with salt and pepper.
Place eggs and panko-parmesan mix in two separate shallow dishes.
Dredge each medallion in egg then panko-parmesan mix
Heat 2 T oil in large skillet at medium-high.
Cook medallions in a single layer until brown (1-2 min/side). Drain on paper towel
Repeat steps 4 and 5 with remaining medallions.
Heat 1 T oil in wok or separate skillet, add garlic and after 1 min add tomatoes and cook until they burst, add green beans. Reduce heat to medium,. Reduce liquid with occasional stirring until thickened- 6 min.
Stir in basil and season to taste
Serve medallions with beans and topped with tomatoes and sauce.