Heat olive oil in a large skillet over medium-high heat and add sliced vegan sausage, cooking for 5-6 minutes until browned on both sides, then remove and set aside.
In the same skillet, add minced garlic and cook for 30 seconds until fragrant.
Add orzo and vegetable broth to the skillet, bring to a boil, then reduce heat and simmer for 10 minutes, stirring occasionally.
Add broccoli florets and plant milk, cover and cook for 5-7 minutes until broccoli is tender and orzo is creamy.
Return sausage to the skillet, stir in lemon juice and red pepper flakes, season with salt and pepper, and serve immediately.