Preheat oven to 450 degrees F. Whisk together sesame oil, soy sauce, sambal oelek, rice vinegar, and fish sauce in a small bowl. Stir together rice, carrots, bell pepper, onion, and ½ cup of the scallions in a large bowl. Add sesame oil mixture to rice mixture; stir well to fully coat.
Spread rice mixture in an even layer on a rimmed baking sheet. Bake in preheated oven until rice begins to toast on outer edges, about 15 minutes. Remove from oven. Stir; drizzle evenly with eggs, and top with shrimp.
Return rice mixture to oven; bake at 450 degrees F until shrimp is opaque and cooked through and eggs are cooked through, 5 to 7 minutes. Remove from oven; transfer mixture to a large bowl. Add peas; toss to combine until peas are warmed through, about 1 minute. Sprinkle with remaining 2 tablespoons scallions; serve immediately.