Mild chilli & bean pasta bake

Name: Mild chilli & bean pasta bake
Prep time: 10 min
Cook time: 45 min
Total time: 55 min
Cuisine: Mexican
Ingredients: 1 large onion chopped; 2 sticks celery thinly sliced; 340g extra-lean minced beef; 2 tsp mild chilli powder; 410g can chopped tomatoes; 1 tbsp tomato purée; 400g can kidney bean in water, drained and rinsed; 300ml beef or chicken stock; 300g wholewheat penne; ½ x 568g tub 0% fat Greek yogurt; 2 eggs beaten; 50g red leicester cheese, coarsely grated; 1 small garlic clove crushed