Adjust rack to top position and preheat oven to 425 degrees. Wash and dry produce.

Halve bell peppers lengthwise; remove stems and seeds. Trim and thinly slice scallions, separating whites from greens. Remove and discard any large stems from kale; chop into bite-size pieces. Quarter lemon. Drain and rinse beans. Dice tomato into ½-inch pieces.

Place pepper halves on a baking sheet and rub all over with a drizzle of oil. Season with salt and pepper, then arrange cut sides down.

Roast on top rack until browned and softened, 15-18 minutes.

Meanwhile, heat a drizzle of oil in a small pot over medium-high heat. Add scallion whites, ½ tsp Italian Seasoning (1 tsp for 4 servings), and a big pinch of salt. (You’ll use more Italian Seasoning later.) Cook, stirring, until fragrant, 2-3 minutes. 

Add couscous, half the stock concentrates, and ¾ cup water (1½ cups for 4). Bring to a boil, then cover and reduce heat to low. Cook until tender, 6-8 minutes.

Keep covered off heat until ready to use.

While couscous cooks, in a small bowl, combine hummus, 1 TBSP olive oil (2 TBSP for 4 servings), and ¼ tsp garlic powder (½ tsp for 4). (You’ll use the rest of the garlic powder in the next step.) Stir in water 1 tsp at a time until mixture reaches a drizzling consistency. Season with salt and pepper.

Heat a drizzle of oil in a large pan over medium heat. Add kale, remaining garlic powder, 1 tsp Italian Seasoning (2 tsp for 4 servings), juice from one lemon wedge (two wedges for 4), a splash of water, salt, and pepper. Cook, stirring and adding more splashes of water as needed, until kale is tender and water has evaporated, 5-7 minutes.

Stir in beans, tomato, couscous, remaining stock concentrate, and a drizzle of olive oil; cook, stirring, until warmed through, 1-2 minutes. Remove pan from heat; taste and season with salt and pepper.

Once peppers are done roasting, remove sheet from oven. Carefully stuff with half the filling.

Divide remaining filling between plates; top with stuffed peppers. Drizzle with creamy hummus and sprinkle with scallion greens. Serve with any remaining lemon wedges on the side.