Wash and dry all produce. Bring 1¼ cups water to a boil in a small pot. Halve zucchini lengthwise; slice into thin half-moons. Trim and thinly slice mushrooms. Halve, peel, and very thinly slice shallot. Peel carrots; using a peeler, shave lengthwise into ribbons. Peel and mince ginger. Mince garlic.

Once water boils, add rice and a pinch of salt to pot. Cover, lower heat, and reduce to a gentle simmer. Cook until tender, 15-20 minutes.

Toss shallot with vinegar and a pinch of salt in a small bowl. Set aside to marinate. In another small bowl, stir together sesame oil, 1½ TBSP sugar, up to half the sriracha, and 1½ TBSP soy sauce (we’ll use more of the sriracha and soy sauce later).

Heat a drizzle of oil in a large pan over medium-high heat (use a nonstick pan if you have it). Add carrots; season with salt and pepper. Cook, tossing, until tender but still crisp, 3-4 minutes. Remove from pan and set aside. Add another drizzle of oil to pan and repeat with zucchini; remove from pan once cooked. Add mushrooms and another drizzle of oil to pan and cook until tender, 3-5 minutes. Season with salt and pepper. Remove from pan and set aside.

Heat another drizzle of oil in same pan over medium-high heat. Add garlic and ginger and cook until fragrant, about 30 seconds. Add beef, breaking up meat into pieces. Cook, tossing occasionally, until no longer pink, about 4 minutes. Increase heat to high and cook until browned and crisp, about 3 minutes. Pour in 1½ TBSP soy sauce (there will be some left over) and cook, tossing, until mostly evaporated, 1-2 minutes. Season with salt and pepper.

Divide rice between bowls. Arrange beef, zucchini, carrots, and mushrooms on top. Drizzle with sauce and remaining sriracha to taste.