Gather all ingredients and equipment needed.
Preheat oven to 400°F.
Rinse and peel Russet potatoes, cut into small cubs, place in large pot and fill with enough water to cover the potatoes. Turn to high heat and bring to a boil, then reduce heat to a simmer and cook potatoes for 30 minutes or until they are fork tender. Drain water and shake off excess liquid. Place potatoes in a bowl, add roasted garlic, using a hand/stand mixer mash potatoes until smooth or desired consistency. Let cool and set aside.
To make chili lime spiced acorn squash combine sliced acorn squash, olive oil, chili lime seasoning, cumin, salt, black pepper, smoked paprika and chili powder in a bowl and toss until fully coated. Place seasoned squash onto a parchment paper lined baking tray and place in oven. Roast squash for 15 minutes or until slightly charred and soft. Remove tray and let cool.
To make sautéed zucchini and yellow squash combine zucchini, yellow squash, olive oil, salt, black pepper, cumin and oregano in a bowl until fully coated. Then in a frying pan on medium-high heat, add a little olive oil and the seasoned zucchini and squash and sauté for 5-7 minutes. Set aside.
In a large bowl add mashed potatoes, avocado, lemon juice, olive oil, salt and black pepper, using a fork smash avocados into mashed potatoes until fully mixed.
To make board, spread avocado mashed potatoes evenly then top with black beans, fire-roasted corn, red onions, chili lime acorn squash, sautéed zucchini and yellow squash, Pico de Gallo, crumbled Queso Fresco and garnish with cilantro leaves.