Sticky beef with cucumber salad

Name: Sticky beef with cucumber salad
Cuisine: Asian
Ingredients: 700g 5% Beef Mince; 1/2 Onion; 3 Cloves of Garlic; 150g Mushrooms; 1 Fresh Chilli (Medium heat); 2 Spring Onions; 4 Tbsp Oyster Sauce; 3 Tbsp Sweet Chilli; 2 Tbsp Mirin; 2 Tosp Soy Sauce; Rice; 250g Uncooked Rice; Smashed cucumber salad; 1 Tsp Chilli Flakes; 1 Tbsp Light Soy Sauce; 1 Tbsp Mirin; 1 Tbsp Sesame Oil; 1 Spring Onion; 2 Tbsp Sesame Seeds; Cucumber