Preheat the oven to 220C, fan-forced. Finely chop the shallot. Wipe the mushrooms clean and thinly slice. Crush or finely chop the garlic. Trim the baby broccoli and cut into thirds widthwise. Finely grate the parmesan. Crumble 1 stock cube* into a heatproof jug, add 1L (4 cups) boiling water and stir to dissolve.
Step 2 — Start broth
Heat 2 tsp olive oil in a large saucepan over medium-high heat. Cook the shallot, stirring, for 3-4 mins until softened. Add the mushrooms and cook, stirring, for 4 mins or until the mushrooms are golden (only stir them a few times to allow them to brown). Add the garlic and miso and cook, stirring, for 1 min or until fragrant.
Step 3 — Simmer broth
Add the shiitake mushrooms and stock to the pan and bring to the boil. Reduce the heat to medium and simmer for 8-10 mins to develop the flavour. Taste, then season with salt and pepper.
Step 4 — Toast baguette
Once the broth has been simmering for 5 mins, put the baguette on an oven tray and bake on the lower oven shelf for 6 mins or until lightly toasted.
Step 5 — Cook broccoli and pasta
Add the baby broccoli and tortellini to the broth. Increase the heat to high and cook for 3 mins or until the baby broccoli is tender and the tortellini is al dente.
Step 6 — Get ready to serve
Divide the tortellini and broth among bowls. Scatter over the parmesan and serve with the toasted baguette.