Prep all of the veggies (peel and chop), then add the sausages and veggies to a sheet pan. Drizzle with olive oil, and sprinkle with fajita seasoning (or your favorite spice blend), oregano, and salt. Toss veggies with your hands until they're well coated with the olive oil and seasonings.
Bake for 20 minutes, flipping halfway. To check if the veggies are ready, insert a fork in a piece of potato or squash and see if they're tender.
Serve with rice, buckwheat, quinoa, in sandwiches or on their own for weight loss.
To Make the Quick Pesto
In a food processor, blitz all of the ingredients together until smooth. Have a taste and adjust seasonings to your preference. Add pesto to the sausage bake and enjoy.