Spicy Mackerel Pasta - Nonna Pia's

Ingredients

• 500g large pasta shells or rigatoni
• 2 tbsp olive oil
• 2 tbsp unsalted butter
• 2 shallots, thinly sliced
• 2 garlic cloves, minced
• 3 Club Des Millionnaires anchovy fillettes
• 1/2 tsp cracked black pepper
• 1 large head black kale, or roughly 5 cups, destemmed and finely chopped
• 3 tbsp Nonna Pia’s Tomato Paste
• 1 jar (660ml) Nonna Pia’s Arrabiata sauce
• 1 can (115g) Gold Seal Mediterranean Mackerel , drained and flaked
• 1 cup toasted walnuts, roughly chopped
• 1/4 cup feta, crumbled