Summer veg tostadas

Name: Summer veg tostadas
Ingredients: 4 mini tortillas; 4 tsp vegetable oil; 1 courgette, halved lengthways, quartered then cut into 3cm chunks; 198g can sweetcorn, drained; ½ tsp smoked paprika; 80g cherry tomatoes, halved; 2 spring onions, trimmed and finely sliced; 250g frozen peas, defrosted; 1 garlic clove, peeled; 2 mint sprigs, leaves picked and roughly chopped, plus extra to serve; small handful of coriander, roughly chopped; 2 limes, 1 juiced, 1 cut into wedges to serve; 80g natural yogurt