In a medium bowl, toss tofu with cornstarch, 1/2 teaspoon salt, and 1/4 teaspoon pepper until evenly combined.
Heat vegetable oil in a large nonstick skillet over medium-high heat. Add tofu and sear on all sides several minutes until crispy. Drain on paper towels.
In a medium bowl, whisk gochujang, garlic, honey, brown sugar, vinegar, and soy sauce until smooth.
Pour sauce into same pan used for tofu and bring to a simmer over medium-high heat, stirring occasionally until thickened and bubbly. Fold in tofu and green onions until tofu is evenly coated and green onion is wilted. Season tofu with salt and pepper to taste if needed.
Assemble bowls by spooning rice into serving bowls and topping with gochujang tofu, pickled carrots and cucumber, kimchi, and sesame seeds. Serve bowls immediately and enjoy!