Separate, wash, and dry the dandelion greens and put them into a large bowl. Slice the onion, pepper, and scallions very thinly and add them to the greens.
Peel and devein the shrimp, thread them on skewers, and season them with salt and pepper to taste.
Grill the skewers over a medium fire until the shrimp are completely opaque, about 3 to 4 minutes per side.
Meanwhile, whisk the oils, vinegar, soy sauce, ginger, sugar, and Tabasco sauce together in a bowl until homogenous.
Add the shrimp to the greens, pour the dressing on, and toss well. Garnish with the toasted sesame seeds.