Let me give you two tips for this recipe: stick to a large pan (or two!) rather than a small one; this will ensure that the vegetables roast instead of steaming. Also, the potatoes in particular need to be cut into pieces smaller than the other vegetables so that everything is finished cooking at the same time.
I wrote down the spices I used below; I knew I wanted less paprika and more garlic powder than the original recipe recommended. I increased the amounts of sausage (from 9 ounces to 24 ounces) and potatoes (from 1 to 4) to make leftovers and avoid the need for a side; the amounts below make 6 generous adult servings, or a little more than 8 servings for a family of four with small children. You could also make a bit less and serve it with a side of quinoa or rice, but I feel like that defeats the purpose of a one-pan meal a bit.
4 small-to-medium red potatoes
¾ lb. green beans
1 large head of broccoli
2 large bell peppers (or 6 mini sweet bell peppers), assorted colors
2 large smoked sausages (I used 12-oz. uncured smoked pork sausages)
6 Tbsp. olive oil (or a bit less)
1 pinch Korean pepper (or red pepper flakes, to taste)
1 tsp. garlic powder
½ tsp. paprika
1 Tbsp. dried oregano
1 Tbsp. dried basil
salt and pepper, to taste
grated parmesan, to serve (optional, I didn’t use it)
Preheat the oven to 400 °F. Line two large sheet pans with foil or parchment paper.
Prep the vegetables: chop the red potatoes (into pretty small pieces, so they will be tender in time), trim the green beans and halve, chop the broccoli florets, chop the bell peppers into large squares, and coin the sausage in thick slices.
Place all the veggies and sausage on a sheet pan. Pour the olive oil and all the spices on top. Toss to evenly coat all the veggies and meat. (I prefer doing the tossing in a large bowl and pouring it out onto the baking sheets after.)
Bake 15 minutes, remove from the oven, and stir all the veggies around with a spatula. Return to the oven and bake for another 10-15 minutes or until vegetables are crisp tender and sausage is browned.
If desired, sprinkle freshly grated parmesan cheese over the veggies and sausage as soon as they come out of the oven.