Preheat your oven to 400°F (200°C).
Cube the Japanese sweet potato into bite-sized pieces and toss them with a teaspoon of olive oil, smoked paprika, salt, and pepper.
Spread the sweet potato cubes on a baking sheet and roast for about 25-30 minutes until tender and slightly caramelized, turning halfway through.
Meanwhile, drain and rinse the chickpeas. Pat them dry with a paper towel, then toss with a teaspoon of olive oil, a pinch of salt, and additional smoked paprika if desired.
Spread the chickpeas on another baking sheet and roast in the oven for 20-25 minutes until crispy, stirring once or twice.
While the vegetables roast, heat a pan over medium heat with a little olive oil. Add minced garlic and sauté until fragrant.
Add kale to the pan, season with salt and pepper, and cook for 3-5 minutes until just wilted but still vibrant.
Grill or pan-sear the tempeh slices (cut from a 3-ounce piece) until golden on both sides, about 3-4 minutes per side.
Assemble the dish in a bowl by layering the roasted sweet potato, crispy chickpeas, garlicky kale, and grilled tempeh. Serve warm and enjoy!