Preheat oven to 400°F and line a baking sheet with parchment paper.
Peel and cube the sweet potato, then boil in a pot of water for 12-15 minutes until tender.
In a small bowl, mix the almond flour, paprika, salt, and pepper to create the crust.
Pat the cod fillets dry with a paper towel, brush with one teaspoon of olive oil, and press the almond mixture firmly onto the top of the fish.
Place the cod on the prepared baking sheet and bake for 12-15 minutes until the fish is opaque and flakes easily.
While the fish bakes, heat the remaining olive oil in a skillet over medium heat and sauté the green beans and minced garlic for 5-7 minutes until tender-crisp.
Drain the sweet potatoes and mash them thoroughly with the lemon juice and a splash of the cooking water for a creamy consistency.
Serve the crispy cod alongside the sweet potato mash and garlic green beans.