Pat the salmon cubes dry with paper towels to ensure maximum crispiness.
In a medium bowl, whisk together cornstarch, salt, and pepper.
Add salmon cubes to the bowl and toss until each piece is evenly coated.
Heat vegetable oil in a large non-stick skillet over medium-high heat.
Place salmon cubes in the skillet in a single layer, working in batches if necessary to avoid overcrowding.
Sear for 2-3 minutes per side until golden brown and crispy, then remove salmon from the pan and set aside.
Lower heat to medium and add minced garlic to the same pan, sautéing for 30 seconds until fragrant.
Whisk in honey, soy sauce, and lemon juice into the pan.
Simmer the sauce for 1-2 minutes until it thickens into a glaze.
Return the salmon bites to the pan and toss gently to coat thoroughly.
Remove from heat and garnish with sesame seeds and sliced green onions before serving.