Press the tofu: Wrap the tofu block in a clean towel and press it for 20 minutes to remove excess water.
Cut and coat: Slice tofu into cubes. Toss with cornstarch, salt, and pepper until lightly coated.
Cook tofu: Heat sesame oil in a skillet over medium heat. Fry tofu cubes for 3–4 minutes on each side until golden brown.
Cook rice: Combine rice and water in a pot. Bring to boil, cover, and simmer 15 minutes (brown rice takes longer). Fluff with a fork.
Prepare veggies: Lightly steam broccoli, or sauté all vegetables for 3–4 minutes until tender but crisp.
Make peanut sauce: Mix peanut butter, soy sauce, maple syrup, rice vinegar, and sriracha in a bowl. Add water gradually to get a smooth, pourable sauce.
Assemble the bowl: Start with rice as the base, layer crispy tofu on top, add vegetables, and drizzle peanut sauce. Sprinkle green onions, sesame seeds, or crushed peanuts. Serve warm.