Start by sautéing onion, red bell pepper and green bell pepper in olive oil in a large saucepan over medium-high heat for 2-3 minutes, or until tender. Stir in vegan baked beans, plant-based ground beef, barbecue sauce, curry seasoning, red pepper flakes and vegan maple syrup. Bring to a boil. Reduce heat to low and simmer for approximately 10 minutes, or until sauce thickens, stirring occasionally.