Preheat your oven to 200C. In a mixing bowl, toss together your sweet potato chips with the oil and seasonings. Arrange on a lined baking tray and place in the oven to bake for 35 minutes, or until crisp.
In the meantime, make your fish. Stir together all dry ingredients in a bowl, along with salt and pepper. In a separate bowl, whisk the egg. Dunk each fillet of fish into the egg, then roll into the ground almond mixture, ensuring all sides are coated. Place into a pan and gently fry for a few minutes on each side, or until lightly golden. Remove from the heat and set aside.
Once your chips have been cooking for 20 minutes, turn them, then place the fish on a separate tray into the oven beside them. Bake until the fish is cooked through (around 15 minutes).
In the meantime, make your peas. Gently heat the oil in a pan, then add the peas. Cook until defrosted, then place into a blender with the remaining ingredients and pulse until you reach desired consistency.
Serve the cooked fish alongside crispy sweet potato chips and mushy peas.