How to Make It
Light a grill. Arrange four 18-inch sheets of heavy-duty foil on a work surface. Put a 14-inch sheet of nonstick foil on each sheet and drizzle 1 teaspoon of canola oil in the center of each.
In a bowl, mix the pork, ginger, scallion, vinegar, soy sauce, sesame oil and a generous pinch each of salt and pepper.
Mound the rice in the center of the foil sheets and, using damp hands, press into 3/4-inch-thick rounds. Top each mound with one-fourth of the spinach, then crack an egg on top of each mound. Crumble one-fourth of the pork around each mound, then pile the carrots alongside; season with salt and pepper. Bring 2 sides of the foil up over the filling to form a seam across the top, leaving space for the egg. Fold the remaining 2 sides to seal.
Slide the foil packets onto the grill and cook over medium heat until the rice is crisp on the bottom and the egg whites are firm but the yolks are runny, 8 to 12 minutes; open once to check the eggs. Open the packets and, using a thin spatula, slide the bibimbaps onto 4 plates. Serve with cucumber, gochujang and sesame seeds.