In a medium saucepan, melt butter for the lime honey drizzle over medium-high heat.
Add garlic and cook until browned, approximately 1 to 2 minutes. Stir in agave, lime juice, soy sauce and red pepper flakes.
Whisk cornstarch in a small bowl with 1 tsp water.
Stir into the sauce. Cook until thickened, approximately 1 minute. Set aside and keep warm over low heat.
Line a rimmed baking sheet with aluminum foil. Grease lightly with olive oil.
In a small bowl, stir together salt, pepper, garlic powder and Chinese five spice.
Place salmon on the baking sheet. Season with salt and pepper. Pat on the spice mixture to the tops of the filets.
Broil on low for 5 minutes, then flip and broil for another 5 minutes until cooked through. Remove skin.
Add half the rice to each bowl. Top with avocado and jalapeño. Finish with the salmon on top. Drizzle over the lime honey sauce.
Garnish with sesame seeds and chopped scallions. Serve with soy sauce if desired.