Prepare rice according to package instructions and fluff with a fork. Optionally add a splash of sesame oil or rice vinegar for flavor.
Pat salmon dry, then season evenly with paprika, garlic powder, onion powder, salt, and black pepper.
Heat olive oil in a skillet over medium-high heat. Cook salmon 3 to 4 minutes per side until golden and cooked through.
Remove salmon from heat and gently flake into large pieces.
In a small bowl, whisk together mayonnaise, sriracha, soy sauce, honey, and lime juice if using. Adjust seasoning to taste.
Divide cooked rice into bowls and top with flaked salmon.
Add sliced cucumber, avocado, shredded carrots, and any additional desired toppings.
Drizzle generously with the spicy sauce.
Garnish with chopped green onions and sesame seeds. Serve immediately while warm.