Add a couple of tablespoons of olive oil and some salt & pepper and place it in the oven. (rockmyvegansocks.com)
In large Dutch oven over high heat, brown onion, garlic, celery and bell pepper in remaining tablespoon olive oil until soft (3 minutes). (connoisseurusveg.com)
Stir in the remaining tablespoon butter at the end, garnish with parsley, and add the lemon juice. (cookingchanneltv.com)